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Mathematics Gate 2008
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we have to check whether the statement is equivalent or not. For that we try to find a true false case and if it exists then that will imply that it is not equivalent. Now for creating True in LHS we say that there exists an x such that either P(x) or Q ... for both P(x) and Q(x) to be true simultaneously and any one of them being true at a time can do the job. Thanks
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