core.logic

Exports logic, bitwise, and boolean functions.

and

Description

Returns a true value only if all expressions are also true. This function will short-circuit as soon as a falsey expression is encountered, and will not evaluate any of the subsequent expressions. This includes any potential side effects of those expressions.

Usage

<expression 1> [... <expression N>]

Examples

(and (> 20 1) (> 40 20))

or

Description

Returns a true value if at least one expression is true. This function will short-circuit as soon as a truthy expression is encountered, and will not evaluate any of the subsequent expressions. This includes any potential side effects of those expressions.

Usage

<expression 1> [... <expression N>]

Examples

(or (> 20 1) (> 1 20))

not

Description

Returns the logical negation of the value provided.

Usage

<expression>

Examples

(not (> 1 20))