Answers

2016-04-28T10:55:56+05:30
De morgan's law are a pair of transformation rulesthat are both valid rules of inference.the rules allow the expression of conjuctions and disjunctions purely in terms of each other via negation.
     the negation of a conjuction is the disjunction of the negations.
    the negation of a disjunction is the conjuction of the negations.
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