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OpenStudy (lucho95):
Look at the statement below. "All squares are quadrilateral." - Which of these is a logically equivalent statement? a- If it is not a square, it is not a quadrilateral. b- All quadrilaterals are squares. c- If it is not a quadrilateral, it is not a square. d- It will be a quadrilateral if and only if it is square.
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OpenStudy (anonymous):
D
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