Rascal/Expressions/Values/Boolean/Negation

Name Rascal/Expressions/Values/Boolean/Negation

Synopsis The not operator on Boolean values.

Syntax ! Exp

Types

`Exp`	`! Exp`
`bool`	`bool`

Description The not operator on Boolean values defined as follows:

`Exp`	`! Exp`
`true`	`false`
`false`	`true`

Examples

rascal>!true;
bool: false

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