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Revise the predicates add4 to add5 and subtract to subtract2 in order to handle numerals X-Y, for numerals X and Y. For instance, ?-
Revise the predicates add4 to add5 and subtract to subtract2 in order to handle numerals X-Y, for numerals X and Y. For instance, ?- add5(-(s (0)-p(0)),s (0),x). X = p (0) ?- subtract2 (p(0), p(s (0))-s(s (0)), Z). Z = s(0) so that Z takes the form sn (0) or pn (0) for some n 0.
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Advanced Engineering Mathematics
Authors: Erwin Kreyszig
10th edition
470458364, 470458365, 978-0470458365
