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From: luke@umnstat.stat.umn.edu (Luke Tierney)
Subject: Re: DEFCLASS vs DEFPROTO  / ( xlisp vs xlisp-stat ? ) 
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Date: Fri, 2 Sep 1994 16:48:22 GMT
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xlispstat uses a completely different object system than xlisp.
xlispstat's system is prototype-based and supports multiple
inheritance. xlisp's is class-based and uses single inheritance.  I
changed the system for xlispstat to allow me to experiment with some
of these issues and because prototypes seemed more suitable to
interactive modification.

luke

