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  1. Odd_even(X).
  2. mod(X,2) @>= 1.
Compilation error #stdin compilation error #stdout 0s 0KB
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stdin
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?- Odd_even(5)
compilation info 
prog.pl:1:9: syntax error: . or operator expected after expression
prog.pl:2: fatal error: redefining built-in predicate (@>=)/2
compilation failed
stdout
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Standard output is empty
https://ideone.com/h5F5c
language:
Prolog (gprolog 1.4.5)
created:
14 years ago
visibility:
public

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