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Include Paulo Moura's Logtalk OO LP system

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git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@53 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
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2001-06-06 19:40:57 +00:00
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Logtalk/examples/roots/SCRIPT Normal file
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=================================================================
Logtalk - Object oriented extension to Prolog
Release 2.8.4
Copyright (c) 1998-2001 Paulo Moura. All Rights Reserved.
=================================================================
% some queries dealing with instance/class hierarchies:
| ?- object::ancestors(Ancestors).
Ancestors = [class, abstract_class, object]
Yes
| ?- class::instances(Instances).
Instances = [object, abstract_class, class]
Yes
| ?- class::superclass(Super).
Super = abstract_class ;
Super = object ;
No