Prove invalid by building a countermodel. (Ex) ~ Hx (x) ((Zx v Hx) & (Hx v Mx)) (x) (( ~ Gx & Mx) > (Gx v ~ Bx)) (x) (Hx v (Gx > ~ Zx)) ____________________ (x) (Bx v ~ Zx)

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A: The answer is given below.

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A:

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