Jeff,
I only just got round to reading MS 717, which you attached, only to discover that the passage I quoted in my comment to Lowell 3.14 today is part of it! Jungian synchronicity? Anyway, it will probably take me awhile to peruse the whole thing, as I'm still busy with the Lowells, and both CP and Robin this "fragment" about 10 years earlier than that. So it will probably be some time before I'll have anything much to say about its relation to the Lowell lectures or the existential graphs. Let us know if you have further thoughts on the matter. Gary f. From: Jeffrey Brian Downard [mailto:jeffrey.down...@nau.edu] Sent: 21-Jan-18 11:47 To: peirce-l@list.iupui.edu Subject: Fw: [PEIRCE-L] Lowell Lecture 3.12 Hi Gary F, Gary R, John S, List, Peirce seems to suggest there is a difference in kind involved in moving from: 1. points on line (relation of dimension 0 to dimension 1) 2. lines on a surface (relation of dimension 1 to dimension)--and so on with higher dimensions. It is clear that the Alpha graphs, which express what is called the core of the deductive theory, involve diagrammatic relations of the order of (2) above and not (1). As such, I think it might help if we draw on examples involving lines on topological surfaces when thinking about what is involved in the three systems of the EG and how those formal systems might be used to help us analyze reasoning and thinking. Doing so enables us to draw on the kinds of points that Peirce makes in the little essay called "Categories" that is in the NEM vol. 4 (MS 717), which I have attached for those who might be interested in drawing on what he says there for the sake of clarifying the connection between the discussion of the EG and the categories in Lowell lectures 2 and 3. Jeff
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