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(setf (not x) y) => (setf x (not y))

To: "David C. Plummer" <DCP@SCRC-QUABBIN.ARPA>
Subject: (setf (not x) y) => (setf x (not y))
From: "Scott E. Fahlman" <Fahlman@C.CS.CMU.EDU>
Date: Sun, 20 Jul 1986 19:16:00 -0000
Cc: common-lisp@SU-AI.ARPA
Sender: FAHLMAN@C.CS.CMU.EDU

OK, I considered those suggestions as seriously as I could, and to me
they look utterly worthless and needlessly confusing.  Unless you can
demonstrate some good use for these constructs that could not be done
much perspicuously and clearly using existing mechanisms, I suggest we
drop this.

-- Scott

Follow-Ups:
- (setf (not x) y) => (setf x (not y))
  - From: David C. Plummer <DCP@QUABBIN.SCRC.Symbolics.COM>
- (setf (not x) y) => (setf x (not y))
  - From: Robert W. Kerns <RWK@YUKON.SCRC.Symbolics.COM>

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