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Look up , Boolean, or Booleans in Wiktionary, the free dictionary.boolean |

In most computer programming languages, a **Boolean** data type is a data type with only two possible values: true or false.

Related to this, * Boolean* (named after George Boole) may also refer to:

- Boolean algebra, a logical calculus of truth values or set membership
- Boolean algebra (structure), a set with operations resembling logical ones
- Boolean circuit, a mathematical model for digital logical circuits.
- Boolean expression, an expression in a programming language that produces a Boolean value when evaluated
- Boolean function, a function that determines Boolean values or operators
- Boolean model (probability theory), a model in stochastic geometry
- Boolean network, a certain network consisting of a set of Boolean variables whose state is determined by other variables in the network
- Boolean processor, a 1-bit variables computing unit
- Boolean satisfiability problem

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