non

Negates a boolean expression.

Aliases: !

Syntax: non <expression>

Category

logic

Related

• verum
• falsum

Examples

examples/corpus/non/non.fab (canonical · keyword)

Negates a boolean expression.

# non — logical not
#
# GRAMMAR:
#   unaryExpr :← 'non' expr
#
# EXPECTED OUTPUT:
#   Scalar stdout smoke (see body).
#

incipit {
    fixum _ flag ← falsum
    fixum _ negated ← non flag
    nota negated
}

Expected output:

verum