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In: Advanced Math

Determine the truth value of each statement in the case when the universe comprises all nonzero...

Determine the truth value of each statement in the case when the universe comprises all nonzero integers, and in the case when the universe consists of all nonzero real numbers.

(a) ∃x∀y (xy = 1);

(b) ∀x∃y ((2x + y = 5) ∧ (x − 3y = −8)).

What is the answer for a) and )b? Please thoroughly explain, I've only taken Logic and Quantifiers so far.
Please make sure it's clear and readable, 100% I'll thumbs ups if it's good.

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