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  1. is_odd(X) :- 1 is mod(X,2).
  2. is_even(X) :- 0 is mod(X,2).
  3.  
  4.  
Success #stdin #stdout 0.02s 68352KB
comments (?)
stdin 
is_odd(5).
is_even(6).
is_odd(4).
is_even(1).
stdout 
GNU Prolog 1.3.1
By Daniel Diaz
Copyright (C) 1999-2009 Daniel Diaz

yes

yes

no

no
https://ideone.com/InC6v
language:
Prolog (gprolog 1.4.5)
created:
14 years ago
visibility:
public

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