From: Sylvain Joyeux Date: 2005-07-07T05:02:25+09:00 Subject: Re: Inheriting Array and slice() behaviour This is a lisp-like language, so expressions are basically array of atoms and expressions. When I do a slice() this is to get a subset of the list, but a subset is not an expression itself. Expression is-a Array, but Expression.slice is just an Array Sylvain