True

True

is the symbol for the Boolean value true.

Background & Context

Examples

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Basic Examples  (4)

Evaluate a Boolean expression:

Use a conditional:

Test a structural property:

Test a mathematical property:

Properties & Relations  (6)

The symbol for the Boolean value false:

Truth table for a Boolean function:

The Boole function:

This equality is not resolved automatically:

Use FullSimplify to find its truth value:

A fully quantified expression:

Use Resolve to find its truth value:

Use Refine to find truth values of expressions under specified assumptions:

Wolfram Research (1988), True, Wolfram Language function, https://reference.wolfram.com/language/ref/True.html.

Text

Wolfram Research (1988), True, Wolfram Language function, https://reference.wolfram.com/language/ref/True.html.

BibTeX

@misc{reference.wolfram_2021_true, author="Wolfram Research", title="{True}", year="1988", howpublished="\url{https://reference.wolfram.com/language/ref/True.html}", note=[Accessed: 27-October-2021 ]}

BibLaTeX

@online{reference.wolfram_2021_true, organization={Wolfram Research}, title={True}, year={1988}, url={https://reference.wolfram.com/language/ref/True.html}, note=[Accessed: 27-October-2021 ]}

CMS

Wolfram Language. 1988. "True." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/True.html.

APA

Wolfram Language. (1988). True. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/True.html