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  1. is_odd :- Y is mod(X,2).
  2. is_even :- Y is mod(X,2).
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin 
?-is_odd
compilation info 
prog.pl:1: warning: singleton variables [Y,X] for is_odd/0
prog.pl:2: warning: singleton variables [Y,X] for is_even/0
prog.pl:1: fatal error: unbound variable in arithmetic expression
compilation failed
stdout 
Standard output is empty
https://ideone.com/3NsXl
language:
Prolog (gprolog 1.4.5)
created:
14 years ago
visibility:
public

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