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From: earle@tekcrl.TEK.COM (Earl Ecklund)
Newsgroups: comp.misc,sci.math,sci.math.symbolic,talk.philosophy.misc
Subject: Re: G. Spenser-Brown: `Laws Of Form', and the four-color map theorem
Message-ID: <1474@tekcrl.TEK.COM>
Date: Mon, 9-Mar-87 19:24:59 EST
Article-I.D.: tekcrl.1474
Posted: Mon Mar  9 19:24:59 1987
Date-Received: Tue, 10-Mar-87 19:04:07 EST
References: <424@wheaton.UUCP>
Reply-To: earle@tekcrl.TEK.COM (Earl Ecklund)
Organization: Tektronix, Inc., Beaverton, OR.
Lines: 12
Keywords: boolean algebra and arithmetic, symbolic logic, Appel & Haken
Xref: mnetor comp.misc:328 sci.math:695 sci.math.symbolic:54 talk.philosophy.misc:491

In article <424@wheaton.UUCP> stucki@wheaton.UUCP (David J Stucki) writes:
>
>I have this book by G. Spenser-Brown called 'The Laws of Form' which claims
>that it is the means by which the four-color map theorem was first proved in
>a sufficient manner.  I'm looking for confirmation or refutation of this
>claim.
>

You might like to see:

Cull and Frank, "Flaws of Form", International Journal of
General Systems. 1979, Vol 5 pp 201-211.