خطأ

Represents the false boolean value and can prefix a falsity check.

Syntax: خطأ [<expression>]

Category#

boolean

Related#

• صواب
• لاشيء

Examples#

radix/corpus/falsum/falsum.fab (canonical · keyword)#

Represents the false boolean value and can prefix a falsity check.

test "falsum is the false literal" {
    const bool inactive ← false
    assert inactive ≡ false
    assert not inactive
}

test "falsum contrasts with verum" {
    assert false ≠ true
    assert false ≡ false
}
# =============================================================================
# خطأ — Represents the false boolean value and can prefix a falsity check
# =============================================================================
#
# What this teaches:
#   • Represents the false boolean value and can prefix a falsity check.
#   • Related keywords: صواب, نوع_لاشيء
#
# Common mistakes:
#   • Confusing `خطأ` with `نوع_لاشيء` — `خطأ` is a منطقي literal (false); `نوع_لاشيء` is the null/absent sentinel.
#
# See also: صواب, نوع_لاشيء
# =============================================================================

# خطأ — false literal
#
# GRAMMAR:
#   literal :← 'خطأ'
#
# EXPECTED OUTPUT:
#   Scalar stdout smoke (see body).
#

main {
    const bool inactive ← false
    print inactive
}

Expected output:

falsum