From ...
From: Erik Naggum <erik@naggum.no>
Subject: Re: COMPLEMENT, again
Date: 1999/06/21
Message-ID: <3138981460897056@naggum.no>#1/1
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* Erik Naggum <erik@naggum.no>
| (define-complement = /=)

  interestingly, this (and many other) seemingly complementary functions
  are only complementary with two arguments.  with one argument, as in
  (= 1), most of these predicates yield true, and a complement should yield
  false.  with three or more arguments, as in (= 1 1 2), both may be false
  and (not (= ...)) is thus very different from (/= ...).  oh, well.

#:Erik
-- 
@1999-07-22T00:37:33Z -- pi billion seconds since the turn of the century