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Logic and the set theory - Lecture 9: Predicate Calculus

Logic and the set theory - Lecture 9: Predicate Calculus

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Inference rules for <strong>the</strong> universal quantifiersUniversal Introductionφ containing a name letter α without any conditions on it. Wereplace by ∀βφ β/α .S. Choi (KAIST) <strong>Logic</strong> <strong>and</strong> <strong>set</strong> <strong>the</strong>ory October 7, 2012 7 / 26

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