#\ / 1

Documentation
- Reference manual
  - The SWI-Prolog library
    - library(clpfd): CLP(FD): Constraint Logic Programming over Finite Domains
      - CLP(FD) predicate index
        
        Reification predicates
        
        #\/1
        
        #<==>/2
        
        #==>/2
        
        #<==/2
        
        #/\/2
        
        #\//2
        
        #\/2
        
        zcompare/3
- Packages

Availability::- use_module(library(clpfd)).

Source

Q does not hold. See reification (section A.9.12).

For example, to obtain the complement of a domain:

?- #\ X in -3..0\/10..80.
X in inf.. -4\/1..9\/81..sup.