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| add(0, Y, Y). | |
| add(succ(X), Y, succ(Z)) :- add(X,Y,Z). | |
| mult(0,_,0). | |
| mult(succ(0), Z, Z). | |
| mult(succ(X),Y,Z) :- add(ZZ, Y, Z), mult(X, Y, ZZ). | |
add(0, Y, Y).
add(Y, 0, Y).
add(succ(X), Y, succ(Z)) :- add(X,Y,Z).
mult(0,_,0).
mult(succ(0), Z, Z).
mult(succ(X),Y,Z) :- add(ZZ, Y, Z), mult(X, Y, ZZ).
add(0, Y, Y).
add(Y, 0, Y).
add(succ(X), Y, succ(Z)) :- add(X,Y,Z).
mult(0,_,0).
mult(succ(0), Z, Z).
mult(succ(X),Y,Z) :- add(ZZ, Y, Z), mult(X, Y, ZZ).
1 ?- edit.
true.
2 ?- mult(succ(succ(0)), succ(succ(0)), Z).
Z = succ(succ(succ(succ(0)))) .
3 ?-
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?- tspy(mult).
% Spy point on mult/3
ERROR: '$c_call_prolog'/0: Undefined procedure: thread_util:gdebug/0
ERROR: However, there are definitions for:
ERROR: thread_util:tdebug/0
ERROR: thread_util:tdebug/1