For each of the following, either construct a formal proof of validity or prove invalidity by means
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For each of the following, either construct a formal proof of validity or prove invalidity by means of the STTT.
(P_{1}): [(D ꓦ E) ⋅ F] ⊃ G
(P_{2}): (F ⊃ G) ⊃ (H ⊃ I)
(P_{3}): H
∴ D ⊃ I
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Related Book For
Introduction To Logic
ISBN: 9781138500860
15th Edition
Authors: Irving M. Copi, Carl Cohen, Victor Rodych
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