Evaluate the proposition ∀∃y.P(x,y) ⇐⇒ ∃y.∀x.P(x,y) for an unknown predicate P. Could the statement be true? Must the statement be true for all P? Give a specific P (with domains for x and y) where it is either true or false. Prove that it is true for all P, or show a contradiction.

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Q: - (pA(-p V 9) A(-9V -p)}

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Q: formulate 2 samples of conjunction of proposition

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Statements and Logic

Logic is the analysis of general patterns of thoughts without regard to any specific sense of context.