19 lines
364 B
Prolog
19 lines
364 B
Prolog
/* Comments /* can nest */
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still a comment
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*/
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:- module(maplist, maplist/3)
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assert(world:done). % asserts
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sibling(X, Y) :- parent_child(Z, X), parent_child(Z, Y).
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parent_child(X, Y) :- father_child(X, Y).
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parent_child(X, Y) :- mother_child(X, Y).
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mother_child(trude, sally).
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father_child(tom, sally).
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father_child(tom, erica).
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father_child(mike, tom).
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