[ library(COLIBRI_DOC) | ]

X => Y

X implies Y.
X
A "boolean" integer term (range 0..1).
Y
A "boolean" integer term (range 0..1).

Description

Equivalent to the expression neg(X) or Y. This constraints exists also in a reified form, (X => Y) #= Bool, where Bool is an int variable ranging in 0..1.

See Also

neg / 2, and / 2, or / 2, xor / 2, ite / 3