================================================================= Logtalk - Object oriented extension to Prolog Release 2.29.4 Copyright (c) 1998-2007 Paulo Moura. All Rights Reserved. ================================================================= To load this example and for sample queries, please see the SCRIPT file. This example contains simple meta-interpreters for pure Prolog encapsulated in Logtalk categories: solver simple meta-interpreter for pure Prolog proof_tree simple meta-interpreter for pure Prolog returning the proof tree for successful queries tracer simple meta-interpreter for pure Prolog that traces proof construction To use a meta-interpreter with an object, simply import the corresponding category.