Normal Forms, DNF, CNF, Valid Argument, Rules Of Inference

Complete set of Video Lessons and Notes available only at http://www.studyyaar.com/index.php/module/34-logic-and-propositions Normal Forms, DNF, CNF, Valid Argument, Rules Of Inference http://www.studyyaar.com/index.php/module-video/watch/97-normal-forms-and-rules-of-inference