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0. Let ν(x) mean x is a vegetarian, m(y) for y is meat, and e(x, y) for x eats y. Based on these, consider the following sentences : I. ∀x ν(x ) ⇔ (∀y e(x, y) ⇒ ¬m(y)) II. ∀x ν(x ) ⇔ (¬(∃y m(y) ∧e(x, y))) III. ∀x (∃y m(y) ∧e(x, y)) ⇔ ¬ν(x) One can determine that
Only I and II are equivalent sentences
Only II and III are equivalent sentences.
Only I and III are equivalent sentence .
I, II, and III are equivalent sentences.
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