Thanks for the response, it was very informative. > Frege's tension of coextensivity (A = A and A = B) I googled and now reading up on this one. I really enjo

Thanks for the response, it was very informative. > Frege's tension of coextensivity (A = A and A = B) I googled and now reading up on this one. I really enjoy how things that seem basic on the surface can generate so much thoughtful analysis without a clear and obvious solution.