In the following exercises: (a) use the logical equivalences p -> q ≡∼ p ∨ q and p ↔ q ≡ (∼ p ∨ q) ∧ (∼ q ∨ p) to rewrite the given statement forms without using the symbol -> or ↔, and (b) use the logical equivalence p ∨ q ≡∼ (∼ p∧ ∼ q) to rewrite each statement form using only ∧ and ∼. 1 (a) p∧ ∼ q -> r (b) p∨ ∼ q -> r ∨ q (c) (p -> r) ↔ (q -> r) (d) (p -> (q -> r)) ↔ ((p ∧ q) -> r)
Added by Gary H.
Step 1
Step 1: Using the logical equivalence p -> q ≡ ∼ p ∨ q, we can rewrite the statement forms without using the symbol -> as follows: (a) p∧ ∼ q -> r ≡ ∼ (p∧ ∼ q) ∨ r ≡ (∼ p ∨ q) ∨ r (b) p∨ ∼ q -> r ∨ q ≡ ∼ (p∨ ∼ q) ∨ (r ∨ q) Show more…
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