The World of Ā
Cf: Laws Of Form Discussion • JA
The relationship between classical and non-classical logic is a topic that comes up from time to time in these discussions. Inquiry into it tends to take a different tack when guided by Peirce’s placement of logic as a normative science within the more general study of triadic sign relations. Here’s a brief comment I posted on the Peirce List with links to previous comments on the Foundations Of Math List when the subject came up there.
Re: Peirce List Discussion • GF
On the relationship between the classical laws of logic and their easement, relaxation, stay, or violation in the qualities of generality and vagueness, see the quotes and remarks I posted to the Foundations Of Mathematics List.