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10.11.1 Introduction

The clp(Q,R) system described in this chapter is an instance of the general Constraint Logic Programming scheme introduced by [Jaffar & Michaylov 87]. It is a third-party product, bundled with SICStus Prolog as two library packages. It is not supported by SICS in any way.

The implementation is at least as complete as other existing clp(R) implementations: It solves linear equations over rational or real valued variables, covers the lazy treatment of nonlinear equations, features a decision algorithm for linear inequalities that detects implied equations, removes redundancies, performs projections (quantifier elimination), allows for linear dis-equations, and provides for linear optimization.

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