# Category Archives: Symbolism

## Charles Sanders Peirce, George Spencer Brown, and Me • 10

Re: Laws Of Form Discussion With any formal system it is easy to spend a long time roughing out primitives and reviewing first principles before getting on to practical applications, and logical graphs are no different in that respect.  But … Continue reading

## Charles Sanders Peirce, George Spencer Brown, and Me • 9

Re: Laws Of Form Discussion • Boundary Logic • RS A wider field of investigation opens up at this point, having to do with the diversity of interactions among the languages we use, and systems of signs in general, to … Continue reading

## Charles Sanders Peirce, George Spencer Brown, and Me • 8

Re: Laws Of Form Discussion • Boundary Logic • JW For me, the heart of the matter is what is the purpose of logic and what is the purpose of math and what is their relationship? There are semiotic situations … Continue reading

## Charles Sanders Peirce, George Spencer Brown, and Me • 7

Re: Laws Of Form Discussion • Boundary Logic • CB A statement that implies both and is called a false statement, and anyone can prove anything at all from a false statement, as we all too frequently observe on the … Continue reading

## Charles Sanders Peirce, George Spencer Brown, and Me • 6

Re: Laws Of Form Discussion • Peirce’s Law • AM • AM The formal system of logical graphs is defined by a foursome of formal equations, called initials when regarded purely formally, in abstraction from potential interpretations, called axioms when … Continue reading

## Charles Sanders Peirce, George Spencer Brown, and Me • 5

Here are blog and wiki versions of an article I wrote on Peirce’s Law, an axiom or theorem (depending on your choice of logical basis) that distinguishes classical from intuitionistic propositional calculus.  Aside from its pivotal logical status it affords … Continue reading

## Charles Sanders Peirce, George Spencer Brown, and Me • 4

Re: Laws Of Form Discussion Two things that had a big impact on my studies of Peirce and Spencer Brown over the years were my parallel studies in mathematics and computer science.  In the overlap between those areas came courses … Continue reading

## Charles Sanders Peirce, George Spencer Brown, and Me • 3

Re: Laws Of Form Discussion • AM • AM • AM • AM There are a number of “difficulties at the beginning” that arise here.  I’ve been trying to get to the point where I can respond to James Bowery’s … Continue reading

## Charles Sanders Peirce, George Spencer Brown, and Me • 2

Re: Laws Of Form Discussion • JA • JB • AM I’m making an effort to present this material in a more gradual and logical order than I’ve ever managed to do before.  There are issues about the relationship between … Continue reading

## Charles Sanders Peirce, George Spencer Brown, and Me • 1

Re: Laws Of Form Discussion • Jon Awbrey It’s almost 50 years now since I first encountered the volumes of Peirce’s Collected Papers in the math library at Michigan State, and shortly afterwards a friend called my attention to the … Continue reading