Concept explainers
Other logical connectives between two propositions P and Q are possible.
14. “NAND” and “NOR” circuits are commonly used as a basis for flash memorychips. A NAND B is defined to be the negation of “A and B.” A NOR B isdefined to be the negation of “A or B.”
(a) Write truth tables for the NAND and NOR connectives.
(b) Show that
(c) Show that
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