classical logic

noun

A kind of logic based on the principles that each proposition has a truth value of either "true" or "false", but not both, and that if a proposition were to be both true and false or neither true nor false then a result would be that all propositions would be both true and false.

“The Lindenbaum-Tarski algebra of propositional classical logic is a Boolean algebra.”

Similar
Frege-Russell logic
Opposite
non-classical logicintuitionistic logicternary logic
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Meanings

nounclassical logic (countable and uncountable, plural classical logics)

plural classical logics

  1. countableuncountablehuman sciencesA kind of logic based on the principles that each proposition has a truth value of either "true" or "false", but not both, and that if a proposition were to be both true and false or neither true nor false then a result would be that all propositions would be both true and false.

    The Lindenbaum-Tarski algebra of propositional classical logic is a Boolean algebra.

    Synonyms: Frege-Russell logic

Synonyms & antonyms

nounA kind of logic based on the principles that each proposition has a truth value of either "true" or "false", but not both, and that if a proposition were to be both true and false or neither true nor false then a result would be that all propositions would be both true and false.

Similar
Frege-Russell logic
Opposite
non-classical logicintuitionistic logicternary logic
Also see
frege-russell logic

Translations

Finnish klassinen logiikka
  • klassinen logiikkaTranslations
French logique classique
  • logique classiqueTranslations
German klassische Logik
  • klassische LogikTranslations
Polish logika klasyczna
  • logika klasycznaTranslations
Romanian logică clasică
  • logică clasicăTranslations
Cite this entry
APA

classical logic. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/classical%20logic

MLA

“classical logic.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/classical%20logic. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “classical logic,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/classical%20logic.

Source: classical logic on Wiktionary, CC BY-SA 4.0.