Which of the following statement is cOTrect? * O pvq =qvp O - (p aq) = -p v -q O (pv q) vr=pv (q vr) O (p - q) A (p - r) = p – (q ar) O All of the choices IfA is any statement, then which of the following is not a contradiction? * AA-A O AVF O AAF All of the choices None from the choices A- (A V q) is a * Contradiction All of the choices Tautology None from the choices Contingency

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