anthem/examples/schur-numbers.lp

#show in/2.
#external integer(n(0)).
#external integer(r(0)).

{in(1..n, 1..r)}.
covered(I) :- in(I, S).

:- I = 1..n, not covered(I).
:- in(I, S), in(J, S), in(I + J, S).
Reimplement integer variable detection This is a reimplementation of the integer variable detection procedure. The idea is to iteratively assume variables to be noninteger, and to prove that this would lead to a false or erroneous result. If the proof is successful, the variable is integer as a consequence. 2018-04-20 16:12:54 +02:00			`#show in/2.`
			`#external integer(n(0)).`
			`#external integer(r(0)).`

Added Schur numbers example. 2017-06-12 02:27:57 +02:00			`{in(1..n, 1..r)}.`
			`covered(I) :- in(I, S).`

			`:- I = 1..n, not covered(I).`
			`:- in(I, S), in(J, S), in(I + J, S).`