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Hace 11 horas · Binary relation. In mathematics, a binary relation associates elements of one set, called the domain, with elements of another set, called the codomain. [1] A binary relation over sets and is a set of ordered pairs consisting of elements from and from . [2]
Hace 11 horas · Constructive set theory. Axiomatic constructive set theory is an approach to mathematical constructivism following the program of axiomatic set theory . The same first-order language with " " and " " of classical set theory is usually used, so this is not to be confused with a constructive types approach.
Hace 11 horas · t. e. Stephen William Hawking, CH, CBE, FRS, FRSA (8 January 1942 – 14 March 2018) was an English theoretical physicist, cosmologist, and author who was director of research at the Centre for Theoretical Cosmology at the University of Cambridge. [6] [17] [18] Between 1979 and 2009, he was the Lucasian Professor of Mathematics at Cambridge ...
Hace 11 horas · Engels' theory of resource control, and later that of Karl Marx, was used to explain the cause and effect of change in family structure and function. The popularity of this theory was largely unmatched until the 1980s, when other sociological theories, most notably structural functionalism, gained acceptance.
Hace 11 horas · Postmodern theory asserts that the attempt to canonize Modernism "after the fact" is doomed to unresolvable contradictions. In a narrower sense, what was Modernist was not necessarily also postmodern. Those elements of Modernism which accentuated the benefits of rationality and socio-technological progress were only Modernist.
Hace 11 horas · History (derived from Ancient Greek ἱστορία (historía) 'inquiry; knowledge acquired by investigation') [1] is the systematic study and documentation of the human past. [2] [3] The period of events before the invention of writing systems is considered prehistory. [4] ". History" is an umbrella term comprising past events as well as the ...
Hace 11 horas · Nikola Tesla ( / ˈtɛslə /; [2] Serbian Cyrillic: Никола Тесла, [nǐkola têsla]; 10 July [ O.S. 28 June] 1856 – 7 January 1943) was a Serbian-American [3] [4] inventor, electrical engineer, mechanical engineer, and futurist. He is known for his contributions to the design of the modern alternating current (AC) electricity supply ...
