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mars03 mars03
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“(A ∙ B) ⊃ (B ⊃ A), (A ≡ B) ⊃ (A ∙ B) ∴ (A ≡ B) ⊃ (B ⊃ A)” isa

▸ modus tollens

▸ modus ponens

▸ contraposition

▸ hypothetical syllogism

▸ disjunctive syllogism
Textbook 

How to Think Logically


Edition: 2nd
Authors:
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goodone14goodone14
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