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nand n. 反及 反及 NAND 非与的 NAND both its arguments are true, the {logical complement} of {AND}: A NAND B = NOT (A AND B) = (NOT A) OR (NOT B) Its {truth table} is: A | B | A NAND B -------------- F | F | T F | T | T T | F | T T | T | F NAND, like {NOR}, forms a complete set of {Boolean} functions on its own since it can be used to make NOT, AND, OR and any other Boolean function: NOT A = A NAND A A AND B = NOT (A NAND B) A OR B = (NOT A) NAND (NOT B) (1995-01-24)
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