A valid sentence or tautology is a sentence that is (A) True under all…

A valid sentence or tautology is a sentence that is

(A) True under all interpretations, no matter what the world is actually like or what the semantics is.

(B) False under all interpretations.

(C) Both A and B

(D) None of the above

  1. A.

    True under all interpretations, no matter what the world is actually like or what the semantics is

  2. B.

    False under all interpretations

  3. C.

    Both A and B

  4. D.

    None of the above

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