Subject: Re: zerop
From: Erik Naggum <>
Date: Wed, 24 Oct 2001 02:20:15 GMT
Newsgroups: comp.lang.lisp
Message-ID: <>

* Kent M Pitman
| I personally find it abhorrent to see (= 0 x); I prefer (= x 0).

  Since I frequently write (<= 0 foo <limit>), and read this as a test
  whether the arguments are increasing non-monotonically, instead of the
  more informal "less than or equal", which works only for two arguments in
  my view, just like (+ a b c) as which I read "sum of" rather than "plus",
  I find it more convenient to start the argument list with the constant.

  Also, in (< 4 x), the symbol < has the visual appeal that the arguments
  should have increasing values from left to right for the expression to be
  true, and likewise for > for decreasing values.  Using infix syntax, I
  would write x > 4, but I would also read it backwards.

  Norway is now run by a priest from the fundamentalist Christian People's
  Party, the fifth largest party representing one eighth of the electorate.
  The purpose of computing is insight, not numbers.   -- Richard Hamming