fork download 
  1. loves(vincent, mia).
  2. loves(marsellus,mia).
  3. jealous(X,Y):- loves(X,Z), loves(Y,Z), X \= Y.
  4.  
  5. :- jealous(vincent,W), write(W).
Success #stdin #stdout #stderr 0.02s 6160KB
comments (?)
stdin 
Standard input is empty
stdout 
marsellus
stderr
https://ideone.com/luMb1e
language:
Prolog (swi 7.6.4)
created:
9 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!