Logical NAND
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The logical NAND is an operation on two logical values, typically the values of two propositions, that produces a value of false if and only if both of its operands are true. In other words, it produces a value of true if and only if at least one of its operands is false.
The truth table of Failed to parse (Missing texvc executable; please see math/README to configure.):
also written Failed to parse (Missing texvc executable; please see math/README to configure.): or Failed to parse (Missing texvc executable; please see math/README to configure.): appears below:
Failed to parse (Missing texvc executable; please see math/README to configure.):  
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Logical operators

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