Question: Find a common domain for the variables x, y, z, and w for which the statement xyzw((w x) (w y) (w

Find a common domain for the variables x, y, z, and w for which the statement ∀x∀y∀z∃w((w ≠ x) ∧ (w ≠ y) ∧ (w ≠ z)) is true and another common domain for these variables for which it is false.

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