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.


(P1): [(D  ꓦ E) ⋅ F] ⊃ G
(P2): (F ⊃ G) ⊃ (H ⊃ I)
(P3): H
∴ D ⊃ I

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Related Book For  answer-question

Introduction To Logic

ISBN: 9781138500860

15th Edition

Authors: Irving M. Copi, Carl Cohen, Victor Rodych

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