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• 14:28, 20 October 2025 Bfh-sts talk contribs created page Equivalence (Created page with "= Equivalence = Equivalence is the logical operation corresponding to "IF AND ONLY IF". It states that two propositions are logically identical in truth value. == Symbols == * p ↔ q (standard notation) * p ⇔ q (alternative) * p IFF q (short for "if and only if") == Definition == The equivalence ''p ↔ q'' is true if ''p'' and ''q'' have the same truth value. It is false if their truth values differ. == Truth Table == {| class="wikitable" ! p !! q !! p ↔ q...")