A Boolean data type has two truth values. A binary probabilistic query returns such a value; rejection or failure must be represented separately if false outcomes are valid observations of the query.
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The Boolean data type is a fundamental data type used in computer science and programming that represents one of two possible values: `true` or `false`. It is named after the mathematician George Boole, who developed Boolean algebra, a branch of mathematics that deals with truth values. In programming, the Boolean type is typically used for: 1. **Conditional Statements**: It allows for decisions to be made based on conditions.