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constraints and OR

From: Johannes Middeke
Subject: constraints and OR
Date: Thu, 3 Jan 2002 17:32:33 +0100 (MET)


can I, when using FDs, tell prolog to apply either one constraint or
another, but not both? (I would like to have two intervals [A,B] and
[C,D], where A,B,C,D are FD-variables and the intersection is the empty
set, so that C has to be greater than B XOR lesser than A.)

thanx ^^.

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