For each of the following, either construct a formal proof of validity or prove invalidity by means
Question:
For each of the following, either construct a formal proof of validity or prove invalidity by means of the STTT.
(P1): T ⊃ (U ⋅ V)
(P2): U ⊃ (W ⋅ X)
(P3): (T ⊃ W) ⊃ (Y ≡ Z)
(P4): (T ⊃ U) ⊃ ~ Y
(P5): ~ Y ⊃ (~ Z ⊃ X)
∴ X
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1 T UV 2 UD W X 3 TW YZ 4 TU Y 5 YZ2X X 6TV U V 7 TVU TVV 8 T...View the full answer
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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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