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theory noun

  /ˈθi.ə.ɹi/ , /ˈθiː.ə.ɹi/ , /ˈθɪə.ɹi/ , /ˈθɪɚ.i/ , /ˈθɪɹ.i/
  • A description of an event or system that is considered to be accurate.
  • (sciences) A coherent statement or set of ideas that explains observed facts or phenomena and correctly predicts new facts or phenomena not previously observed, or which sets out the laws and principles of something known or observed; a hypothesis confirmed by observation, experiment etc. [from 17th c.]
  • (mathematics) A field of study attempting to exhaustively describe a particular class of constructs. [from 18th c.]
  • (countable, logic) A set of axioms together with all statements derivable from them; or, a set of statements which are deductively closed. Equivalently, a formal language plus a set of axioms (from which can then be derived theorems). The statements may be required to all be bound (i.e., to have no free variables).
 teoria
quantum theory
meccanica quantica, teoria quantistica
conspiracy theory
teoria del complotto
quantum field theory
teoria quantistica dei campi
probability theory
teoria della probabilità
string theory
teoria delle stringhe
game theory
teoria dei giochi
chaos theory
teoria del caos
graph theory
teoria dei grafi
set theory
teoria degli insiemi, insiemistica
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