doublehalfpred.pl

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description
owner Johannes Waldmann
uploaded 2017-08-17 03:45:07.0
disk size 291 Bytes
downloadable true
type
attribute value
name no_type
processor id 1
description this is the default benchmark type for rejected benchmarks and benchmarks that are not associated with a type.
owning community none
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%query: f(i).

/* non-terminating example */

pred(0,0).
pred(s(0),0).
pred(s(s(X)),s(Y)) :- pred(s(X), Y).
double(0,0).
double(s(X),s(s(Y))) :- pred(s(X),Z), double(Z, Y). 
half(0,0).
half(s(s(X)),s(U)) :- pred(s(s(X)),Y), pred(Y,Z), half(Z,U).
f(s(X)) :- half(s(X),Y), double(Y,Z),  f(Z).
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