Given the following premises:
1) S ⊃ (∼∼T • ∼∼C)
2) (S • Q) ∨ C
3) ∼C
A) S 2, Simp
B) S ⊃ (T • C) 1, DN
C) S ⊃ ∼∼T 1, Simp
D) S ⊃ (T • ∼∼C) 1, DN
E) S • Q 2, 3, DS
Correct Answer:
Verified
Q16: Given the following premises:
1)S ∨ (∼Q ∨
Q17: Given the following premises:
1)D ⊃ (∼A ∨
Q18: Given the following premises:
1)N ⊃ ∼(S ∨
Q19: Given the following premises:
1)∼(G • F)
2)∼F ⊃
Q20: Given the following premises:
1)∼(∼H • J)
2)K ∨
Q22: Given the following premises:
1)(∼H • ∼J) ⊃
Q23: Given the following premises:
1)∼D ∨ ∼T
2)D ∨
Q24: Use natural deduction to prove the following
Q25: Use conditional proof:
1.S ⊃ (B ⊃ T)
2.N
Q26: Given the following premises:
1)∼∼N
2)K ⊃ ∼N
3)∼N ∨
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