Corollary: Commutativity of Disjunction

(related to Definition: Disjunction)

The disjunction operation "$\vee$" is commutative, i.e. $x \vee y=y \vee x$ for all possible interpretations $I$ and valuation functions $[[]]_I$ of propositions \(x,y.\).

Proofs: 1

Proofs: 1 2 3 4


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