classical logic

classical logic (countable and uncountable, plural classical logics)

1. (logic) 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.

• non-classical logic
• intuitionistic logic
• ternary logic

• Boolean logic