<*logic*> Not AND. The Boolean function which is true unless
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 | FNAND, 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)

Last updated: 1995-01-24

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**Nearby terms:**
namespace « naming convention « NaN « **NAND** » nano- » nanoacre » nanobot

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Copyright Denis Howe 1985