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Re: power set (Re: Modified keypad keys)

From: Christopher Monsanto
Subject: Re: power set (Re: Modified keypad keys)
Date: Mon, 1 Oct 2012 04:35:42 -0400

The powerset is a set of sets. The empty set is always a member of the
powerset, as the empty set is a subset of any other set. Or in other
words, if (length (powerset ...)) is ever zero, you have a bug. Using
'() or nil is incorrect.

Christopher Monsanto
address@hidden  --  http://monsan.to/

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