A boolean is a value that can only be true or false. A boolean flag, set the boolean, boolean logic.
It is named after George Boole, who built an algebra of logic in the 1850s with no idea that it would become the mathematics of every computer a century later. Boolean search uses and, or and not to combine terms, and it is the same system.
1nounbooleanA value that can only be true or false.
“The function returns a boolean telling you whether the user is logged in.”
boolean is a value.
Boolean comes from Boole + -ean, named after George Boole.
Etymology from Wiktionary, CC BY-SA
Practised in Computing & Code