Each of the following exercises presents a flawless formal proof of validity for the indicated argument. For
Question:
Each of the following exercises presents a flawless formal proof of validity for the indicated argument. For each proof, state the justification for each inferred statement (i.e., each statement that is not a premise).
1. Q ⊃ R
2. ~ S ⊃ (T ⊃ U)
3. S ꓦ (Q ꓦ T)
4. ~ S
∴ R ꓦ U
5. T ⊃ U
6. (Q ⊃ R) ⋅ (T ⊃ U)
7. Q ꓦ T
8. R ꓦ U
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Proof 1 Q R Premise 2 S T U Premise 3 S Q T Premise 4 S Prem...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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