For the following argument, construct both (a) A direct formal proof of validity and(b) An indirect proof

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For the following argument, construct both

(a) A direct formal proof of validity and(b) An indirect proof of validity. Compare the lengths of the two proofs.

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Introduction To Logic

ISBN: 9781138500860

15th Edition

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

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Question Posted: Apr 14, 2023 11:52 PM

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For the following argument, construct both (a) A direct formal proof of validity and(b) An indirect proof

Question:

(P₁): (V-W) (XY) (P₂): (-WZ) (Y-A) (P₂): (Z-B)-(-ADC) (P₂): V. X :. ~B.C

Step by Step Answer:

a Direct formal proof b Indirect proof 1 VD W XY 2 W Z YA 3 ZB AC 4 VX ...View the full answer

Introduction To Logic

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