Definition of Boolean
: of, relating to, or being a logical combinatorial system (as Boolean algebra) that represents symbolically relationships (as those implied by the logical operators AND, OR, and NOT) between entities (as sets, propositions, or on-off computer circuit elements) <Boolean expression> <Boolean search strategy for information retrieval>
Origin and Etymology of boolean
George Boole †1864 English mathematician
First Known Use: 1851
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