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  1. :- initialization(main).
  2. main :- hello, % OK
  3.         halt.
  4. hello :- write('Hello World!'), nl.
Success #stdin #stdout 0.01s 5928KB
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Standard input is empty
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Hello World!
https://ideone.com/jqQMOW
language:
Prolog (swi 7.6.4)
created:
4 years ago
visibility:
public

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