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Which is logically equivalent to "If today is Sunday, Matt cannot play hockey."?

$\begin {array} {1 1} (A)\;Today \: is \: Sunday \: and \: Matt \: can \: play \: hockey \\ (B)\;If\: Matt \: plays \: hockey,\: then\: today \: is \: not\: Sunday. \\ (C)\;Today \: is\: Sunday\: and\: Matt\: cannot\: play \: hockey. \\ (D)\;Today\: is \: not\: Sunday\: if\: and\: only\: if\: Matt\: plays\: hockey. \end {array}$


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Ans : (B)
Statements are logically equivalent to their contrapositives
answered Jan 18, 2014 by thanvigandhi_1

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