<[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > After the basic fact of generating the exclusion - a considerable > achievement - the program should be interactive. What if the target set > has thousands or millions of elements? There should be a loop-like way > ('do' in Haskell, for example) to peel off the elements one-by-one and > then terminate.
There is...(Q&D) 1 ?- generate_member(X,[1,2],3,[[and, [*,2], [or, [2,1,*], [1,2,*]]]]), write(X),nl,write('Is this the term you were looking for? (y/n):'), get(Y), ((Y is 121) -> true; fail). % 121 = 'y' [1, 1, 1] Is this the term you were looking for? (y/n):n [1, 1, 2] Is this the term you were looking for? (y/n):|: n [1, 2, 1] Is this the term you were looking for? (y/n):|: y Yes 2 ?- --- Geoff -- http://mail.python.org/mailman/listinfo/python-list