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OS/2 Shareware BBS: 10 Tools
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LIFE-1.02
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LF
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LEFUN2.LF
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1996-06-04
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180b
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26 lines
fun(V) :-
V = G(2=>1),
G = F(X),
valid(F),
pick(X),
unit(sq(V)).
sq(X) -> X*X.
twice(F,X) -> F(F(X)).
valid(twice).
unit(1).
id(X) -> X.
pick(id).