The L G B T Q + Portal
92-420: LGBTQ (also commonly seen as LGBT , LGBT+ , LGBTQ+ , and LGBTQIA+ ) is an initialism for lesbian , gay , bisexual , transgender and queer or questioning . It is an umbrella term , broadly referring to all sexualities , romantic orientations , and gender identities which are not heterosexual , heteroromantic , or cisgender . In the 1990s, gay, lesbian, and bisexual activists adopted
184-459: A slur , as well as those who wish to dissociate themselves from queer radicalism , and those who see it as amorphous and trendy. Some younger people feel queer is a more politically charged, more powerful term than LGBT . In a 2018 U.S. study, about 1 in 5 LGBTQ people identified as "queer". SGM , or GSM , an abbreviation for sexual and gender minorities , has gained particular currency in government, academia, and medicine. GSRM
276-462: A "P" for " polyamorous " or " pangender ", an "H" for " HIV-affected ", or an "O" for "other". The initialism LGBTIH has seen use in India to encompass the hijra third gender identity and the related subculture. Adding the term allies to the initialism has sparked controversy, with some seeing the inclusion of ally in place of asexual/aromantic/agender as a form of LGBT erasure . There
368-451: A "TS", "2S", or "2" for " two-spirit " persons; or an "SA" for " straight allies ". The inclusion of straight allies in the LGBT initialism has proven controversial, as many straight allies have been accused of using LGBT advocacy to gain popularity and status in recent years, and various LGBT activists have criticised the heteronormative worldview of certain straight allies. Some may also add
460-476: A (one-tape) Turing machine can be formally defined as a 7- tuple M = ⟨ Q , Γ , b , Σ , δ , q 0 , F ⟩ {\displaystyle M=\langle Q,\Gamma ,b,\Sigma ,\delta ,q_{0},F\rangle } where A variant allows "no shift", say N, as a third element of the set of directions { L , R } {\displaystyle \{L,R\}} . The 7-tuple for
552-429: A Turing machine, programming languages themselves do not necessarily have this limitation. Kirner et al., 2009 have shown that among the general-purpose programming languages some are Turing complete while others are not. For example, ANSI C is not Turing complete, as all instantiations of ANSI C (different instantiations are possible as the standard deliberately leaves certain behaviour undefined for legacy reasons) imply
644-455: A Turing machine. A programming language that is Turing complete is theoretically capable of expressing all tasks accomplishable by computers; nearly all programming languages are Turing complete if the limitations of finite memory are ignored. A Turing machine is an idealised model of a central processing unit (CPU) that controls all data manipulation done by a computer, with the canonical machine using sequential memory to store data. Typically,
736-3018: A crucial role in cracking intercepted messages that enabled the Allies to defeat the Axis powers in many engagements, including the Battle of the Atlantic . ( Full article... ) Credit: Evrik Featured articles [REDACTED] Mário de Andrade [REDACTED] Ann Bannon [REDACTED] Natalie Clifford Barney [REDACTED] But I'm a Cheerleader [REDACTED] Cleveland Street scandal [REDACTED] Dog Day Afternoon [REDACTED] Fun Home [REDACTED] Emma Goldman [REDACTED] H.D. [REDACTED] Homer's Phobia [REDACTED] Latter Days [REDACTED] Harvey Milk [REDACTED] Same-sex marriage in Spain [REDACTED] Stonewall riots [REDACTED] The Well of Loneliness [REDACTED] Trembling Before G-d Featured lists and topics [REDACTED] GLAAD Media Award for Outstanding Comedy Series [REDACTED] GLAAD Media Award for Outstanding Comic Book [REDACTED] GLAAD Media Award for Outstanding Documentary [REDACTED] GLAAD Media Award for Outstanding Drama Series [REDACTED] GLAAD Media Award for Outstanding Film – Limited Release [REDACTED] GLAAD Media Award for Outstanding Film – Wide Release [REDACTED] GLAAD Media Award for Outstanding Kids and Family Programming [REDACTED] GLAAD Media Award for Outstanding Limited or Anthology Series [REDACTED] GLAAD Media Award for Outstanding Music Artist [REDACTED] GLAAD Media Award for Outstanding Video Game [REDACTED] List of gay, lesbian or bisexual people: A [REDACTED] List of gay, lesbian or bisexual people: R [REDACTED] List of gay, lesbian or bisexual people: Sa–Sc [REDACTED] List of gay, lesbian or bisexual people: Sd–Si [REDACTED] List of gay, lesbian or bisexual people: Sj–Sz [REDACTED] List of gay, lesbian or bisexual people: T–V [REDACTED] List of gay, lesbian or bisexual people: W–Z [REDACTED] Gaylactic Spectrum Awards [REDACTED] List of Gaylactic Spectrum Award winners and nominees for best novel [REDACTED] List of Gaylactic Spectrum Award winners and nominees for best other work [REDACTED] List of Gaylactic Spectrum Award winners and nominees for best short fiction [REDACTED] Lambda Literary Award for Speculative Fiction [REDACTED] Terminology of transgender anatomy The following Wikimedia Foundation sister projects provide more on this subject: Purge server cache LGBTQ LGBTQ (also commonly seen as LGBT , LGBT+ , LGBTQ+ , and LGBTQIA+ )
828-417: A deficiency or a temporary state. Similarly, aromantic individuals lack romantic attraction to others, yet they can still forge profound emotional connections and strong bonds with people without the romantic component. Furthermore, agender individuals either have no gender identity or possess a neutral or genderless gender identity. Some people have mistakenly claimed the A stands for ally, but allies are not
920-493: A derogatory term originating in hate speech and reject it, especially among older members of the community. Many variants of the term LGBT exist, such as the more inclusive LGBT+ and variations that change the order of the letters or include additional letters. At least some of the components of sexuality (regarding hetero, bi, straight), and also gender are stated to be on different spectrums of sexuality . Other common variants also exist, such as LGBTQIA , with
1012-414: A drawing. Whether a drawing represents an improvement on its table must be decided by the reader for the particular context. The reader should again be cautioned that such diagrams represent a snapshot of their table frozen in time, not the course ("trajectory") of a computation through time and space. While every time the busy beaver machine "runs" it will always follow the same state-trajectory, this
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#17330849046501104-400: A finite set of states. At each step of its operation, the head reads the symbol in its cell. Then, based on the symbol and the machine's own present state, the machine writes a symbol into the same cell, and moves the head one step to the left or the right, or halts the computation. The choice of which replacement symbol to write, which direction to move the head, and whether to halt is based on
1196-411: A finite table that specifies what to do for each combination of the current state and the symbol that is read. Like a real computer program, it is possible for a Turing machine to go into an infinite loop which will never halt. The Turing machine was invented in 1936 by Alan Turing , who called it an "a-machine" (automatic machine). It was Turing's doctoral advisor, Alonzo Church , who later coined
1288-479: A finite-space memory. This is because the size of memory reference data types, called pointers , is accessible inside the language. However, other programming languages like Pascal do not have this feature, which allows them to be Turing complete in principle. It is just Turing complete in principle, as memory allocation in a programming language is allowed to fail, which means the programming language can be Turing complete when ignoring failed memory allocations, but
1380-546: A formalisation of the concepts of algorithm and computation with the Turing machine , which can be considered a model of a general-purpose computer . Turing is widely considered to be the father of theoretical computer science. Born in London, Turing was raised in southern England . He graduated from King's College, Cambridge , and in 1938, earned a doctorate degree from Princeton University . During World War II , Turing worked for
1472-404: A machine that mechanically operates on a tape. On this tape are symbols, which the machine can read and write, one at a time, using a tape head. Operation is fully determined by a finite set of elementary instructions such as "in state 42, if the symbol seen is 0, write a 1; if the symbol seen is 1, change into state 17; in state 17, if the symbol seen is 0, write a 1 and change to state 6;" etc. In
1564-450: A marginalized group and mentions of A for ally have regularly sparked controversy as a form of LGBT erasure . The initialisms LGBT or GLBT are not agreed to by everyone that they encompass. For example, some argue that transgender and transsexual causes are not the same as that of lesbian, gay, and bisexual (LGB) people. This argument centers on the idea that being transgender or transsexual has to do more with gender identity, or
1656-461: A model that recognises valid input strings, rather than enumerating output strings. Given a Turing machine M and an arbitrary string s , it is generally not possible to decide whether M will eventually produce s . This is due to the fact that the halting problem is unsolvable, which has major implications for the theoretical limits of computing. The Turing machine is capable of processing an unrestricted grammar , which further implies that it
1748-408: A period between 1979 and 1997 where male anal sex was punishable as "hooliganism". ( Full article... ) Alan Mathison Turing ( / ˈ tj ʊər ɪ ŋ / ; 23 June 1912 – 7 June 1954) was an English mathematician, computer scientist , logician , cryptanalyst , philosopher and theoretical biologist . He was highly influential in the development of theoretical computer science , providing
1840-527: A person's understanding of being or not being a man or a woman irrespective of their sexual orientation. LGB issues can be seen as a matter of sexual orientation or attraction. These distinctions have been made in the context of political action in which LGB goals, such as same-sex marriage legislation and human rights work (which may not include transgender and intersex people), may be perceived to differ from transgender and transsexual goals. A belief in "lesbian and gay separatism" (not to be confused with
1932-419: A source of confusion, as it can mean two things. Most commentators after Turing have used "state" to mean the name/designator of the current instruction to be performed—i.e. the contents of the state register. But Turing (1936) made a strong distinction between a record of what he called the machine's "m-configuration", and the machine's (or person's) "state of progress" through the computation—the current state of
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#17330849046502024-426: A symbol (a j1 ) and moving the head left or right (d k ) are specified as separate instructions. The table tells the machine to (ia) erase or write a symbol or (ib) move the head left or right, and then (ii) assume the same or a new state as prescribed, but not both actions (ia) and (ib) in the same instruction. In some models, if there is no entry in the table for the current combination of symbol and state, then
2116-504: A term used primarily in scientific contexts, has at times carried negative connotations in the United States. Gay became a popular term in the 1970s. As lesbians forged more public identities, the phrase gay and lesbian became more common. A dispute as to whether the primary focus of their political aims should be feminism or gay rights led to the dissolution of some lesbian organizations, including Daughters of Bilitis , which
2208-508: A way of distinguishing themselves from what they regard as white -dominated LGBT communities. In public health settings, MSM (" men who have sex with men ") is clinically used to describe men who have sex with other men without referring to their sexual orientation, with WSW (" women who have sex with women ") also used as an analogous term. MVPFAFF is an abbreviation for Māhū , Vakasalewa , Palopa , Fa'afafine , Akava'ine , Fakaleitī (Leiti), and Fakafifine . This term
2300-505: Is also the acronym QUILTBAG (queer and questioning, unsure, intersex, lesbian, transgender and two-spirit, bisexual, asexual and aromantic, and gay and genderqueer). Similarly LGBTIQA+ stands for "lesbian, gay, bisexual, transgender, intersex, queer/questioning, asexual and many other terms (such as non-binary and pansexual)". In Canada , the community is sometimes identified as LGBTQ2 (lesbian, gay, bisexual, transgender, queer and two spirit). Depending on which organization
2392-703: Is also used to include romantic minorities such as aromanticism . In New Zealand, New Zealand Human Rights Commission uses "Rights of Sexual and Gender Minorities" to discuss LGBT rights. In India, the Constitutional Bench of the Supreme Court of India , when decriminalizing homosexuality in the case of Navtej Singh Johar v. Union of India (2018) , said: Individuals belonging to sexual and gender minorities experience discrimination, stigmatization, and, in some cases, denial of care on account of their sexual orientation and gender identity. However, it
2484-440: Is always done in such a way that the resulting machine has the same computational power. For example, the set could be changed from { L , R } {\displaystyle \{L,R\}} to { L , R , N } {\displaystyle \{L,R,N\}} , where N ("None" or "No-operation") would allow the machine to stay on the same tape cell instead of moving left or right. This would not increase
2576-503: Is an initialism for lesbian , gay , bisexual , transgender and queer or questioning . It is an umbrella term , broadly referring to all sexualities , romantic orientations , and gender identities which are not heterosexual , heteroromantic , or cisgender . In the 1990s, gay, lesbian, and bisexual activists adopted the term LGB , supplanting narrower terms such as "gay or lesbian". Terminology eventually shifted to LGBT , as transgender people became more accepted within
2668-455: Is capable of robustly evaluating first-order logic in an infinite number of ways. This is famously demonstrated through lambda calculus . A Turing machine that is able to simulate any other Turing machine is called a universal Turing machine (UTM, or simply a universal machine). Another mathematical formalism, lambda calculus , with a similar "universal" nature was introduced by Alonzo Church . Church's work intertwined with Turing's to form
2760-469: Is equivalent to a single-stack pushdown automaton (PDA) that has been made more flexible and concise by relaxing the last-in-first-out (LIFO) requirement of its stack. In addition, a Turing machine is also equivalent to a two-stack PDA with standard LIFO semantics, by using one stack to model the tape left of the head and the other stack for the tape to the right. At the other extreme, some very simple models turn out to be Turing-equivalent , i.e. to have
2852-554: Is important to note that 'sexual and gender minorities' do not constitute a homogenous group, and experiences of social exclusion, marginalization, and discrimination, as well as specific health needs, vary considerably. Nevertheless, these individuals are united by one factor - that their exclusion, discrimination and marginalization is rooted in societal heteronormativity and society's pervasive bias towards gender binary and opposite-gender relationships, which marginalizes and excludes all non-heteronormative sexual and gender identities. In
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2944-520: Is inclusive of "those who may not self-identify as LGBT ... or those who have a specific medical condition affecting reproductive development". A publication from the White House Office of Management and Budget states, "We believe that SGM is more inclusive, because it includes persons not specifically referenced by the identities listed in LGBT." A UK government paper favors SGM because initials like LGBTIQ+ stand for terms that, especially outside
3036-449: Is intended as a term encompassing all sexual- and gender-minorities. For some indigenous people , two-spirit invokes a combination of identities, including sexual, gender, cultural, and spiritual. Some people advocate the term "minority sexual and gender identities" (MSGI, coined in 2000) for the purpose of explicitly including all people who are not cisgender and heterosexual or "gender, sexual, and romantic minorities" (GSRM), which
3128-416: Is more explicitly inclusive of minority romantic orientations , but those have not been widely adopted either. Other rare umbrella terms are Gender and Sexual Diversities (GSD), MOGII (Marginalized Orientations, Gender Identities, and Intersex) and MOGAI (Marginalized Orientations, Gender Alignments and Intersex). SGL ( same gender loving ) is sometimes favored among gay male African Americans as
3220-491: Is not true for the "copy" machine that can be provided with variable input "parameters". The diagram "progress of the computation" shows the three-state busy beaver's "state" (instruction) progress through its computation from start to finish. On the far right is the Turing "complete configuration" (Kleene "situation", Hopcroft–Ullman "instantaneous description") at each step. If the machine were to be stopped and cleared to blank both
3312-474: Is supposed to not to appear elsewhere) and then by the note of instructions. This expression is called the "state formula". Earlier in his paper Turing carried this even further: he gives an example where he placed a symbol of the current "m-configuration"—the instruction's label—beneath the scanned square, together with all the symbols on the tape ( The Undecidable , p. 121); this he calls "the complete configuration " ( The Undecidable , p. 118). To print
3404-664: Is using the abbreviation, the choice of initialism changes. Businesses and the CBC often simply employ LGBT as a proxy for any longer abbreviation, private activist groups often employ LGBTQ+ , whereas public health providers favour the more inclusive LGBT2Q+ to accommodate twin spirited indigenous peoples . For a time, the Pride Toronto organization used the much lengthier initialism LGBTTIQQ2SA , but appears to have dropped this in favour of simpler wording. Prime Minister Justin Trudeau
3496-415: The abstract properties of Turing machines has yielded many insights into computer science , computability theory , and complexity theory . In his 1948 essay, "Intelligent Machinery", Turing wrote that his machine consists of: ...an unlimited memory capacity obtained in the form of an infinite tape marked out into squares, on each of which a symbol could be printed. At any moment there is one symbol in
3588-654: The Global North , are "not necessarily inclusive of local understandings and terms used to describe sexual and gender minorities". An example of usage outside the Global North is the Constitution of Nepal , which identifies "gender and sexual minorities" as a protected class. In Canada especially, the term 2SLGBTQ+ is seen, with the first two characters standing for two-spirit ; the whole term stands for two-spirit, lesbian, gay, bisexual, trans, queer and questioning, and
3680-531: The Government Code and Cypher School at Bletchley Park , Britain's codebreaking centre that produced Ultra intelligence. He led Hut 8 , the section responsible for German naval cryptanalysis. Turing devised techniques for speeding the breaking of German ciphers , including improvements to the pre-war Polish bomba method, an electromechanical machine that could find settings for the Enigma machine . He played
3772-490: The I standing for intersex and the A standing for asexual , aromantic , or agender , and LGBTQIA+ , where "the '+' represents those who are part of the community, but for whom LGBTQ does not accurately capture or reflect their identity". Longer initialisms have been criticized as confusing or unwieldy, sometimes being referred to as " alphabet soup ", and mocked with labels such as LGBTQWERTY , LGBTQXYZ , and alphabet mafia . The implication that
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3864-447: The NFA to DFA conversion algorithm). For practical and didactic intentions, the equivalent register machine can be used as a usual assembly programming language . A relevant question is whether or not the computation model represented by concrete programming languages is Turing equivalent. While the computation of a real computer is based on finite states and thus not capable to simulate
3956-446: The essentialist view that they had been born homosexual and used the descriptor lesbian to define sexual attraction often considered the separatist opinions of lesbian-feminists to be detrimental to the cause of gay rights. Bisexual and transgender people also sought recognition as legitimate categories within the larger minority community. In the late 1970s and the early 1980s, after the elation of change following group action in
4048-425: The right of the scanned square. But Kleene refers to "q 4 " itself as "the machine state" (Kleene, p. 374–375). Hopcroft and Ullman call this composite the "instantaneous description" and follow the Turing convention of putting the "current state" (instruction-label, m-configuration) to the left of the scanned symbol (p. 149), that is, the instantaneous description is the composite of non-blank symbols to
4140-587: The "complete configuration" on one line, he places the state-label/m-configuration to the left of the scanned symbol. A variant of this is seen in Kleene (1952) where Kleene shows how to write the Gödel number of a machine's "situation": he places the "m-configuration" symbol q 4 over the scanned square in roughly the center of the 6 non-blank squares on the tape (see the Turing-tape figure in this article) and puts it to
4232-742: The "state register" and entire tape, these "configurations" could be used to rekindle a computation anywhere in its progress (cf. Turing (1936) The Undecidable , pp. 139–140). Many machines that might be thought to have more computational capability than a simple universal Turing machine can be shown to have no more power (Hopcroft and Ullman p. 159, cf. Minsky (1967)). They might compute faster, perhaps, or use less memory, or their instruction set might be smaller, but they cannot compute more powerfully (i.e. more mathematical functions). (The Church–Turing thesis hypothesises this to be true for any kind of machine: that anything that can be "computed" can be computed by some Turing machine.) A Turing machine
4324-674: The 1969 Stonewall riots in New York City , some gays and lesbians became less accepting of bisexual or transgender people. Critics said that transgender people were acting out stereotypes , and bisexuals were simply gay men or lesbian women who were afraid to come out and be honest about their identity. Each community has struggled to develop its own identity including whether, and how, to align with other gender and sexuality-based communities, at times excluding other subgroups; these conflicts continue to this day. LGBTQ activists and artists have created posters to raise consciousness about
4416-567: The 3-state busy beaver looks like this (see more about this busy beaver at Turing machine examples ): Initially all tape cells are marked with 0 {\displaystyle 0} . In the words of van Emde Boas (1990), p. 6: "The set-theoretical object [his formal seven-tuple description similar to the above] provides only partial information on how the machine will behave and what its computations will look like." For instance, Definitions in literature sometimes differ slightly, to make arguments or proofs easier or clearer, but this
4508-699: The LGBT category to create an LGBTI community. Some intersex people prefer the initialism LGBTI , while others would rather that they not be included as part of the term. Emi Koyama describes how inclusion of intersex in LGBTI can fail to address intersex-specific human rights issues, including creating false impressions "that intersex people's rights are protected" by laws protecting LGBT people, and failing to acknowledge that many intersex people are not LGBT. Organisation Intersex International Australia states that some intersex individuals are same-sex attracted, and some are heterosexual, but "LGBTI activism has fought for
4600-401: The T. The campaign has been condemned by many LGBT groups as transphobic . Many have expressed desire for an umbrella term to replace existing initialisms. Queer gained popularity as an umbrella-term for sexual and gender minorities in the 21st century. The term remains controversial, particularly among older LGBT people, who perceive it as offensive due to its historical usage as
4692-681: The US, the term "Sexual and Gender Minority" has been adopted by the National Institutes of Health , the Centers for Medicare & Medicaid Services and the UCLA Williams Institute , which studies SGM law and policy. Duke University and the University of California San Francisco both have prominent sexual and gender minority health programs. An NIH paper recommends the term SGM because it
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#17330849046504784-478: The above nine 5-tuples. For technical reasons, the three non-printing or "N" instructions (4, 5, 6) can usually be dispensed with. For examples see Turing machine examples . Less frequently the use of 4-tuples are encountered: these represent a further atomization of the Turing instructions (cf. Post (1947), Boolos & Jeffrey (1974, 1999), Davis-Sigal-Weyuker (1994)); also see more at Post–Turing machine . The word "state" used in context of Turing machines can be
4876-877: The acronym. Many further variants exist which add additional identities, such as LGBTQIA+ (for intersex , asexual , aromantic , and agender ) and 2SLGBTQ+ (for two-spirit ), LGBTQQ (for queer and questioning), or which order the letters differently, as in GLBT and GLBTQ . The collective of all LGBTQ people is often called the LGBTQ community . These labels are not universally agreed upon by everyone that they are intended to include. For example, some intersex people prefer to be included in this grouping, while others do not. Various alternative umbrella terms exist across various cultures, including queer ; same gender loving (SGL); and Gender, Sexual and Romantic Minorities (GSRM). The first widely used term, homosexual , now
4968-436: The adoption of LGBTQ , and other more inclusive variants. Some versions of the term, such as LGBT+ and LGBTQ+ add a plus sign , to represent additional identities not captured within the acronym. Many further variants exist which add additional identities, such as LGBTQIA+ (for intersex , asexual , aromantic , and agender ) and 2SLGBTQ+ (for two-spirit ), LGBTQQ (for queer and questioning), or which order
5060-480: The basis for the Church–Turing thesis . This thesis states that Turing machines, lambda calculus, and other similar formalisms of computation do indeed capture the informal notion of effective methods in logic and mathematics and thus provide a model through which one can reason about an algorithm or "mechanical procedure" in a mathematically precise way without being tied to any particular formalism. Studying
5152-434: The early 2010s, asexuality and aromanticism started gaining wider recognition. Around 2015, they were included in the expanded initialism LGBTQIA , with the A standing for asexual , aromantic , commonly grouped together as a-spec along with agender . Asexual individuals experience minimal to no sexual attraction to others, and it is crucial to acknowledge that asexuality is a legitimate sexual orientation, not
5244-420: The existence of fundamental limitations on the power of mechanical computation. While they can express arbitrary computations, their minimalist design makes them too slow for computation in practice: real-world computers are based on different designs that, unlike Turing machines, use random-access memory . Turing completeness is the ability for a computational model or a system of instructions to simulate
5336-582: The existence or right to equality of bisexual orientations and of transsexuality, sometimes leading to public biphobia and transphobia . In contrasts to separatists, Peter Tatchell of the LGBT human rights group OutRage! argues that to separate the transgender movement from the LGB would be "political madness", stating that: Queers are, like transgender people, gender deviant. We don't conform to traditional heterosexist assumptions of male and female behaviour, in that we have sexual and emotional relationships with
5428-501: The fall of the Han dynasty , homosexuality was widely accepted in China but this has been disputed. Several early Chinese emperors are speculated to have had homosexual relationships accompanied by heterosexual ones. There exists a dispute among sinologists as to when negative views of homosexual relationships became prevalent among the general Chinese population, with some scholars arguing that it
5520-450: The initialism refers to a single community is also controversial. Although identical in meaning, LGBT may have a more feminist connotation than GLBT as it places the "L" (for "lesbian") first. LGBT may also include additional Qs for " queer " or " questioning " (sometimes abbreviated with a question mark and sometimes used to mean anybody not literally L, G, B or T) producing the variants LGBTQ and LGBTQQ . The order of
5612-603: The issue since the movement began. From about 1988, activists began to use the initialism LGBT in the United States. Not until the 1990s within the movement did gay, lesbian, bisexual, and transgender people gain equal respect. This spurred some organizations to adopt new names, as the GLBT Historical Society did in 1999. Although the LGBT community has seen much controversy regarding universal acceptance of different member groups (bisexual and transgender individuals, in particular, have sometimes been marginalized by
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#17330849046505704-463: The larger LGBT community), the term LGBT has been a positive symbol of inclusion . Beginning in the 1990s, the term queer was beginning to be adopted by the community to support gay-pride and reclaim the term from its earlier pejorative use as scholars have shown. The field of study of the LGBTQ community is called queer studies , in recognition of this reclamation and used as an umbrella term for
5796-561: The left of the scanned symbol or to the right of the scanned symbol. Turing's biographer Andrew Hodges (1983: 107) has noted and discussed this confusion. To the right: the above table as expressed as a "state transition" diagram. Usually large tables are better left as tables (Booth, p. 74). They are more readily simulated by computer in tabular form (Booth, p. 74). However, certain concepts—e.g. machines with "reset" states and machines with repeating patterns (cf. Hill and Peterson p. 244ff)—can be more readily seen when viewed as
5888-420: The left, state of the machine, the current symbol scanned by the head, and the non-blank symbols to the right. Example: total state of 3-state 2-symbol busy beaver after 3 "moves" (taken from example "run" in the figure below): This means: after three moves the tape has ... 000110000 ... on it, the head is scanning the right-most 1, and the state is A . Blanks (in this case represented by "0"s) can be part of
5980-632: The letters differently, as in GLBT and GLBTQ . The collective of all LGBTQ people is often called the LGBTQ community . These labels are not universally agreed upon by everyone that they are intended to include. For example, some intersex people prefer to be included in this grouping, while others do not. Various alternative umbrella terms exist across various cultures, including queer ; same gender loving (SGL); and Gender, Sexual and Romantic Minorities (GSRM). ( Full article... ) Homosexuality has been documented in China since ancient times. According to one study by Bret Hinsch, for some time after
6072-413: The letters has not been standardized; in addition to the variations between the positions of the initial "L" or "G", the mentioned, less common letters, if used, may appear in almost any order. In Hebrew and Peninsular Spanish , LGTB ( להט"ב ) is used, that is, reversing the letters "B" and "T". Variant terms do not typically represent political differences within the community, but arise simply from
6164-432: The machine will halt; other models require all entries to be filled. Every part of the machine (i.e. its state, symbol-collections, and used tape at any given time) and its actions (such as printing, erasing and tape motion) is finite , discrete and distinguishable ; it is the unlimited amount of tape and runtime that gives it an unbounded amount of storage space . Following Hopcroft & Ullman (1979 , p. 148),
6256-508: The machine's computational power. The most common convention represents each "Turing instruction" in a "Turing table" by one of nine 5-tuples, per the convention of Turing/Davis (Turing (1936) in The Undecidable , p. 126–127 and Davis (2000) p. 152): Other authors (Minsky (1967) p. 119, Hopcroft and Ullman (1979) p. 158, Stone (1972) p. 9) adopt a different convention, with new state q m listed immediately after
6348-458: The machine; it is called the scanned symbol. The machine can alter the scanned symbol, and its behavior is in part determined by that symbol, but the symbols on the tape elsewhere do not affect the behavior of the machine. However, the tape can be moved back and forth through the machine, this being one of the elementary operations of the machine. Any symbol on the tape may therefore eventually have an innings. The Turing machine mathematically models
6440-407: The model's simplicity, it is capable of implementing any computer algorithm . The machine operates on an infinite memory tape divided into discrete cells, each of which can hold a single symbol drawn from a finite set of symbols called the alphabet of the machine. It has a "head" that, at any point in the machine's operation, is positioned over one of these cells, and a "state" selected from
6532-444: The movement. Around that time, some activists began to reclaim the term queer , seeing it as a more radical and inclusive umbrella term, though others reject it, due to its history as a pejorative . In recognition of this, the 2010s saw the adoption of LGBTQ , and other more inclusive variants. Some versions of the term, such as LGBT+ and LGBTQ+ add a plus sign , to represent additional identities not captured within
6624-412: The myth that being gay/lesbian/bi/asexual/pansexual/etc. makes a person deficiently different from other people. These people are often less visible compared to more mainstream gay or LGBT activists. Since this faction is difficult to distinguish from the heterosexual majority, it is common for people to assume all LGBT people support LGBT liberation and the visibility of LGBT people in society, including
6716-468: The original article (" On Computable Numbers, with an Application to the Entscheidungsproblem ", see also references below ), Turing imagines not a mechanism, but a person whom he calls the "computer", who executes these deterministic mechanical rules slavishly (or as Turing puts it, "in a desultory manner"). More explicitly, a Turing machine consists of: In the 4-tuple models, erasing or writing
6808-400: The preferences of individuals and groups. The terms pansexual , omnisexual , fluid and queer-identified are regarded as falling under the umbrella term bisexual (and therefore are considered a part of the bisexual community ). Some use LGBT+ to mean "LGBT and related communities". Other variants may have a "U" for "unsure"; a "C" for "curious"; another "T" for " transvestite ";
6900-410: The related " lesbian separatism ") holds that lesbians and gay men form (or should form) a community distinct and separate from other groups normally included in the LGBTQ sphere. While not always appearing in sufficient numbers or organization to be called a movement , separatists are a significant, vocal, and active element within many parts of the LGBT community. In some cases separatists will deny
6992-485: The right to live one's life differently from the majority. In the 1996 book Anti-Gay , a collection of essays edited by Mark Simpson , the concept of a 'one-size-fits-all' identity based on LGBT stereotypes is criticized for suppressing the individuality of LGBT people. Writing in the BBC News Magazine in 2014, Julie Bindel questions whether the various gender groupings now, "bracketed together[,] ... share
7084-772: The rights of people who fall outside of expected binary sex and gender norms". Julius Kaggwa of SIPD Uganda has written that, while the gay community "offers us a place of relative safety, it is also oblivious to our specific needs". Numerous studies have shown higher rates of same-sex attraction in intersex people, with a recent Australian study of people born with atypical sex characteristics finding that 52% of respondents were non-heterosexual; thus, research on intersex subjects has been used to explore means of preventing homosexuality. As an experience of being born with sex characteristics that do not fit social norms, intersex can be distinguished from transgender, while some intersex people are both intersex and transgender. In
7176-489: The same computational power as the Turing machine model. Common equivalent models are the multi-tape Turing machine , multi-track Turing machine , machines with input and output, and the non-deterministic Turing machine (NDTM) as opposed to the deterministic Turing machine (DTM) for which the action table has at most one entry for each combination of symbol and state. Read-only, right-moving Turing machines are equivalent to DFAs (as well as NFAs by conversion using
7268-430: The same issues, values and goals?" Bindel refers to a number of possible new initialisms for differing combinations and concludes that it may be time for the alliances to either be reformed or go their "separate ways". In 2015, the slogan " Drop the T " was coined to encourage LGBT organizations to stop support of transgender people as they say that sexual orientation, LGB, does not share similarity with gender identity,
7360-523: The same sex. We should celebrate our discordance with mainstream straight norms. The portrayal of an all-encompassing "LGBT community" or "LGB community" is also disliked by some lesbian, gay, bisexual, and transgender people. Some do not subscribe to or approve of the political and social solidarity, and visibility and human rights campaigning that normally goes with it, including LGBT pride marches and events. Some of them believe that grouping together people with non-heterosexual orientations perpetuates
7452-915: The scanned symbol S j : For the remainder of this article "definition 1" (the Turing/Davis convention) will be used. In the following table, Turing's original model allowed only the first three lines that he called N1, N2, N3 (cf. Turing in The Undecidable , p. 126). He allowed for erasure of the "scanned square" by naming a 0th symbol S 0 = "erase" or "blank", etc. However, he did not allow for non-printing, so every instruction-line includes "print symbol S k " or "erase" (cf. footnote 12 in Post (1947), The Undecidable , p. 300). The abbreviations are Turing's ( The Undecidable , p. 119). Subsequent to Turing's original paper in 1936–1937, machine-models have allowed all nine possible types of five-tuples: Any Turing table (list of instructions) can be constructed from
7544-440: The sequential memory is represented as a tape of infinite length on which the machine can perform read and write operations. In the context of formal language theory, a Turing machine ( automaton ) is capable of enumerating some arbitrary subset of valid strings of an alphabet . A set of strings which can be enumerated in this manner is called a recursively enumerable language . The Turing machine can equivalently be defined as
7636-402: The term transsexual commonly falls under the umbrella term transgender , but some transsexual people object to this. Those who add intersex people to LGBT groups or organizations may use the extended initialism LGBTI , or LGBTIQ . The relationship of intersex to lesbian, gay, bisexual and trans, and queer communities is complex, but intersex people are often added to
7728-404: The term LGB , supplanting narrower terms such as "gay or lesbian". Terminology eventually shifted to LGBT , as transgender people became more accepted within the movement. Around that time, some activists began to reclaim the term queer , seeing it as a more radical and inclusive umbrella term, though others reject it, due to its history as a pejorative . In recognition of this, the 2010s saw
7820-460: The term "Turing machine" in a review. With this model, Turing was able to answer two questions in the negative: Thus by providing a mathematical description of a very simple device capable of arbitrary computations, he was able to prove properties of computation in general—and in particular, the uncomputability of the Entscheidungsproblem ('decision problem'). Turing machines proved
7912-423: The total state as shown here: B 01; the tape has a single 1 on it, but the head is scanning the 0 ("blank") to its left and the state is B . "State" in the context of Turing machines should be clarified as to which is being described: the current instruction, or the list of symbols on the tape together with the current instruction, or the list of symbols on the tape together with the current instruction placed to
8004-428: The total system. What Turing called "the state formula" includes both the current instruction and all the symbols on the tape: Thus the state of progress of the computation at any stage is completely determined by the note of instructions and the symbols on the tape. That is, the state of the system may be described by a single expression (sequence of symbols) consisting of the symbols on the tape followed by Δ (which
8096-461: The wider community as the academic response to the Stonewall riots. The acronym LGBT eventually evolved to LGBTQ in recognition of the community's reclamation of the term. In 2016, GLAAD 's Media Reference Guide states that LGBTQ is the preferred initialism, being more inclusive of younger members of the communities who embrace queer as a self-descriptor. Some people consider queer to be
8188-741: Was also criticized for using the 2SLGBTQQIA+ initialism. As of July 2023, the Government of Canada's official term is 2SLGBTQI+ . Trudeau's new acronym was criticized by some social media users. The term trans* has been adopted by some groups as a more inclusive alternative to "transgender", where trans (without the asterisk) has been used to describe trans men and trans women , while trans* covers all non-cisgender ( genderqueer ) identities, including transgender, transsexual, transvestite, genderqueer, genderfluid , non-binary , genderfuck , genderless, agender, non-gendered, third gender, two-spirit, bigender , and trans man and trans woman. Likewise,
8280-624: Was common by the time of the Ming dynasty , established in the 14th century, following homophobia entrenched in the Mongol empire and the Yuan dynasty, and others arguing that anti-gay attitudes became entrenched during the Westernization efforts of the late Qing dynasty and the early Republic of China in the 19th and 20th centuries. For most of the 20th century homosexuality in China had been legal, except for
8372-509: Was developed by Phylesha Brown-Acton in 2010 at the Asia Pacific Games Human Rights Conference. This refers to those in the rainbow Pacific Islander community, who may or may not identify with the LGBT initialism. Turing machine A Turing machine is a mathematical model of computation describing an abstract machine that manipulates symbols on a strip of tape according to a table of rules. Despite
8464-500: Was founded by Del Martin and Phyllis Lyon , but disbanded in 1970 following disputes over which goal should take precedence. As equality was a priority for lesbian feminists , disparity of roles between men and women or butch and femme were viewed as patriarchal . Lesbian feminists eschewed gender role play that had been pervasive in bars as well as the perceived chauvinism of gay men ; many lesbian feminists refused to work with gay men or take up their causes. Lesbians who held
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