# Category Archives: Zeroth Order Logic

## The Difference That Makes A Difference That Peirce Makes : 18

Re: Peter Smith • Which Is The Quantifier? From a functional point of view it was a step backward when we passed from Peirce’s and to the current convention of and for logical quantifiers.  There’s a rough indication of what … 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

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

Re: Laws Of Form Discussion • James Bowery James Bowery left a comment on my blog and opened a thread in the Yahoo! group devoted to discussing the mathematics of George Spencer Brown’s Laws of Form.  I’ve been meaning to … Continue reading

## Survey of Abduction, Deduction, Induction, Analogy, Inquiry • 1

This is a Survey of blog and wiki posts on three elementary forms of inference, as recognized by a logical tradition that extends from Aristotle through C.S. Peirce.  Particular attention is paid to the ways these inferential rudiments combine to form … Continue reading

## Animated Logical Graphs : 10

Re: Peirce List Discussion • Charles Pyle Let’s consider Peirce’s logical graphs at the alpha level, the abstract forms of which can be interpreted for propositional logic.  I say “can be interpreted” advisedly because the system of logical graphs itself … Continue reading

## Survey of Differential Logic • 1

This is a Survey of previous blog and wiki posts on Differential Logic, material that I plan to develop toward a more compact and systematic account. Elements Differential Logic • Introduction Differential Propositional Calculus Architectonics Minimal Negation Operator Cactus Language … Continue reading