[ library(COLIBRI_DOC) | ]
X #\= Y
X is not equal to Y.
- X
- An integer term.
- Y
- An integer term.
Description
This constraints exists also in a reified form, (X #\= Y) #= Bool, where Bool is an int variable ranging in 0..1.
Fail Conditions
Fails if the domains of the two terms cannot satisfy the inequality.
Resatisfiable
no
Examples
Success:
int_vars(int,X), X #: 2 .. 10, X #\= 5.
(gives X = _436{[2 .. 4, 6 .. 10]})
int_vars(int,[X,Y]), X #: 1 .. 10, Y #: 15 .. 20, X #\= Y.
(domains intersection is empty)
Fail:
int_vars(int,[X,Y]), X #: 1 .. 10, Y #: 15 .. 20, X #= Y, X #\= Y.
See Also
#= / 2