** If S is a set of sentences of first-order logic and B is a consistent subset of S, then B is included in a set that is maximal among consistent subsets of S. The special case where S is the set of all first-order sentences in a given signature is weaker, equivalent to the Boolean prime ideal theorem ; see the section " Weaker forms " below.

** the classical Lie groups, namely the simple groups related to the projective special linear, unitary, symplectic, or orthogonal transformations over a finite field ;

** Series one: an introductory special on boxing day 1967, followed by 13 regular episodes of 30 minutes broadcast between 26 December 1967 to 28 March 1968, Thursdays at 17: 25.

** Untitled special of 30 minutes broadcast 29 July 1968, Monday at 19: 00.

** Filter ( mathematics ), a special subset of a partially ordered set

** Limits ( BDSM ) are activities that a partner feels strongly about, and to which special attention must be paid.

** M. C. Escher used special shapes of mirrors in order to achieve a much more complete view of his surroundings than by direct observation in Hand with Reflecting Sphere ( also known as Self-Portrait in Spherical Mirror ).

** Frequency-hopping spread spectrum ( FHSS ) applies a special scheme for channel release

** Schwarzschild metric, a description of the geometry around a special type of black hole

** Disjunctive pronouns are used in isolation or in certain other special grammatical contexts.

** Airmail stamps – stamps may be required for airmail, which is typically more expensive and has special postage rates.

** Postage due stamps are special stamps applied by a post office to mail bearing insufficient postage.

** A special processor communication area starting at address 0

** Speed breaking – boards are held loosely by one edge, putting special focus on the speed required to perform the break

** Irish War of Independence: The Black and Tans special constables arrive in Ireland.

** U. S. President Gerald Ford appoints Vice President Nelson Rockefeller to head a special commission looking into alleged domestic abuses by the CIA.

** A special commission of the Congress of the United States releases a report critical of the practice of Japanese internment during World War II.

** Teruyoshi Nakano, Japanese special effects director

** A running gun battle between FBI agents and bank robber Baby Face Nelson results in the death of one FBI agent and the mortal wounding of special agent Samuel P. Cowley, who was still able to mortally wound Nelson.

** Bayesian linear regression, a special case

** The patient is able to care for himself or herself, with or without special equipment, which if needed, must be provided.

** Wipe ( transition ), a type of film transition where one shot replaces another by travelling from one side of the frame to another or with a special shape

** 250, 000 Francs or 16, 600 special drawing rights ( SDR ) for personal injury ;

** megaAVRs with special features not found on the other members of the AVR family, such as LCD controller, USB controller, advanced PWM, CAN etc.

** Harold Wilson becomes British Prime Minister after leading the Labour Party to a narrow election win over the Tory government of Sir Alec Douglas-Home, which had been in power for 13 years and had four different leaders during that time.

** United States presidential election, 1964: Incumbent President Lyndon B. Johnson defeats Republican challenger Barry Goldwater with over 60 percent of the popular vote.

** Glafcos Clerides defeats incumbent George Vasiliou in the Cypriot presidential election.

** Albert Zafy defeats Didier Ratsiraka in the Madagascar presidential election.

** Yemeni parliamentary election, 1993: The General People's Congress wins a plurality of 121 seats.

** Burundian presidential election, 1993: The first multiparty elections in Burundi since the country's independence lead to the election of Melchior Ndadaye, leader of the Front for Democracy in Burundi.

** Japanese general election, 1993: The loss of majority of the Liberal Democratic Party results in a coalition taking power.

** Norwegian parliamentary election, 1993: The Labour Party wins a plurality of the seats, and Prime Minister Gro Harlem Brundtland retains office.

** Greek legislative election, 1993: Andreas Papandreou begins his second term as Prime Minister of Greece.

** Chilean presidential election, 1993: Eduardo Frei Ruiz-Tagle is elected with 58 % of the vote.

** In the first Israeli election, David Ben-Gurion becomes Prime Minister.

** Romanian general election, 1946: The Romanian Communist Party wins 79. 86 % of the vote through widespread intimidation tactics and electoral fraud.

** In the Hungarian parliamentary election, Hungary's first multiparty election since 1948, the Hungarian Democratic Forum wins the most seats.

** In the Greek legislative election, the conservative New Democracy wins the most seats in the Hellenic Parliament ; its leader, Konstantinos Mitsotakis, becomes Prime Minister of Greece on April 11.

** In the Socialist Federal Republic of Yugoslavia, the Socialist Republic of Slovenia holds Yugoslavia's first multiparty election since 1938.

** In the Burmese general election, Burma's first multiparty election in 30 years, the National League for Democracy led by Aung San Suu Kyi wins in a landslide, but the State Law and Order Restoration Council nullifies the election results.

** In the Colombian presidential election, César Gaviria is elected President of Colombia ; he takes office on August 7.

** First round of the Bulgarian Constitutional Assembly election sees the Bulgarian Socialist Party win a majority.

** In the Algerian local election, Algeria's first multiparty election since 1962, the Islamic Salvation Front wins control of more than half of municipalities and 32 of Algeria's 48 provinces.

** The New Zealand general election is won by the New Zealand National Party, and its leader, Jim Bolger, becomes prime minister.