Theorems in propositional logic | Rules of inference | Classical logic

Commutativity of conjunction

In propositional logic, the commutativity of conjunction is a valid argument form and truth-functional tautology. It is considered to be a law of classical logic. It is the principle that the conjuncts of a logical conjunction may switch places with each other, while preserving the truth-value of the resulting proposition. (Wikipedia).

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Tautology (logic) | Propositional calculus | Logical consequence | Metalogic | Rule of inference | Formal system | Proposition | Logical conjunction | Classical logic | Theorem | Sequent | Validity (logic)