Boolean-valued usually refers to: * in most applied fields: something taking one of two values (example: True or False, On or Off, 1 or 0) referring to

two-element Boolean algebra In mathematics and abstract algebra, the two-element Boolean algebra is the Boolean algebra whose ''underlying set'' (or universe or ''carrier'') ''B'' is the Boolean domain. The elements of the Boolean domain are 1 and 0 by convention, so that '' ...

(the

Boolean domain In mathematics and abstract algebra, a Boolean domain is a set consisting of exactly two elements whose interpretations include ''false'' and ''true''. In logic, mathematics and theoretical computer science, a Boolean domain is usually written ...

), e.g.

Boolean-valued function A Boolean-valued function (sometimes called a Predicate (logic), predicate or a proposition) is a function (mathematics), function of the type f : X → B, where X is an arbitrary Set (mathematics), set and where B is a Boolean domain, i.e. a gene ...

Boolean data type In computer science, the Boolean (sometimes shortened to Bool) is a data type that has one of two possible values (usually denoted ''true'' and ''false'') which is intended to represent the two truth values of logic and Boolean algebra. It is named ...

* in mathematics: something taking values over an arbitrary, abstract Boolean algebra, for example

Boolean-valued model In mathematical logic, a Boolean-valued model is a generalization of the ordinary Tarskian notion of structure from model theory. In a Boolean-valued model, the truth values of propositions are not limited to "true" and "false", but instead take ...

See also