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・ nondeterminism
・ nondeterministic
・ nondeterministic automaton
・ nondeterministic polynomial time
・ nondeterministic turing machine
・ nonintrusive testing
・ nonlinear
・ nonpareil
・ nontrivial
・ noob
nor
・ norc compiler
・ norcroft
・ nord pl
・ nordunet
・ norm
・ normal distribution
・ normal form
・ normal order reduction
・ normalisation


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nor : FOLDOC
NOR
Not OR.
The Boolean function which is true if none of its inputs are true and false otherwise, the logical complement of {inclusive OR}. The binary (two-input) NOR function can be defined (written as an infix operator):
A NOR B = NOT (A OR B) = (NOT A) AND (NOT B)
Its truth table is:
A | B | A NOR B
--+---+---------
F | F | T
F | T | F
T | F | F
T | T | F

NOR, like NAND, 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 NOR A
A OR B = NOT (A NOR B)
A AND B = (NOT A) NOR (NOT B)
(1995-02-06)



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