Cf: Charles Sanders Peirce, George Spencer Brown, and Me • 7 https://inquiryintoinquiry.com/2017/08/21/charles-sanders-peirce-george-spencer-brown-and-me-7/
All, Here's an ice-breaker on the question of logical boundaries ... A statement P that implies both Q and ¬Q is called a false statement, and anyone can prove anything at all from a false statement, as we all too frequently observe on the political front these days. There is however a reasonable way of handling boundaries, for instance, as illustrated by the circumference of a region in a venn diagram, and that is by means of differential logic. I’ve been tortoising my way toward the goal line of explaining all that, and it’s going a bit slow, but there’s a gentle introduction at the other end of the link below, if you wish to achilles ahead. Differential Propositional Calculus • Part 1 https://oeis.org/wiki/Differential_Propositional_Calculus_%E2%80%A2_Part_1 Regards, Jon
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