x(A(x, y) ∧ B(x)) ∃x∃y(A(x, y) → B(x)) ¬∃x∃y(A(x, y) → B(x))
Transcription
x(A(x, y) ∧ B(x)) ∃x∃y(A(x, y) → B(x)) ¬∃x∃y(A(x, y) → B(x))
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