An Etymological Dictionary of Astronomy and Astrophysics
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A → variable or → function which takes the value → true or → false. → Boolean algebra.

After the English mathematician George Boole (1815-1864), the founder of mathematical, or symbolic, logic.

Any of a number of possible systems of mathematics that deals with → binary digits instead of numbers. In Boolean algebra, a binary value of 1 is interpreted to mean → true and a binary value of 0 means → false. Boolean algebra can equivalently be thought of as a particular type of mathematics that deals with → truth values instead of numbers.

→ Boolean; → algebra. The term Boolean algebra was first suggested by Sheffer in 1913.