What is NOR logical operator?
Solution 1
!(a or b)
see http://en.wikipedia.org/wiki/Logical_NOR for more:
In boolean logic, logical nor or joint denial is a truth-functional operator which produces a result that is the negation of logical or. That is, a sentence of the form (p NOR q) is true precisely when neither p nor q is true—i.e. when both of p and q are false. In grammar, nor is a coordinating conjunction...
Solution 2
Solution 3
NOR(a, b)
is defined to be NOT(OR(a, b))
which is !(a or b)
in infix notation. By De Morgan's Laws, this is also equivalent to (!a) and (!b)
.
Solution 4
your first alternative: !
(a or b)
which happens to be equivalent to !a and !b
Solution 5
((a NAND a) NAND (b NAND b)) NAND ((a NAND a) NAND (b NAND b))
if you want to be circuit fabrication friendly. :)
user20844
Updated on June 04, 2022Comments
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user20844 over 1 year
Is nor:
!(a or b)
!a or !b
!(a and b)something else?