Logical Equivalence
7 practice questionsDiscrete MathematicsStep-by-step solutions
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1
By De Morgan's laws, ¬(p ∧ q) is equivalent to:
A.¬p ∧ ¬q
B.¬p ∨ ¬q
C.p ∨ q
D.p ∧ q
2
The contrapositive of 'If P then Q' is:
A.If not Q then not P
B.If Q then P
C.If not P then not Q
D.P and Q
3
The contrapositive of the implication 'If P then Q' is:
A.If Q then P
B.If not Q then not P
C.If not P then not Q
D.P and Q
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