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02-02-2024
Mathematics

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3. Which one of the following proposition truth value True? A. ( forall x)( forall y) (xy >= - 1) C.( exists x)( forall y) (x ^ 2 - y ^ 2 = 0) B. ( exists x)( forall y) (x y = 0) D. ( forall x)( exists y) (xy <= 0)

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