example.pl


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:- dynamic(math/4).

math(A,B,C,D) :- D is A + B + C * A.

true.

likes(bob, ice).
likes(sam, text).
likes(sam, ice).

could_be_friends(Person1, Person2) :-
	likes(Person1, Thing1),
	likes(Person2, Thing2),
	Thing1 = Thing2.

list1(A) :- A = [1,2,3,4].
list2(A) :- A = [a,b|c].

curly(A) :- A = {one,two,three}.