That doesn’t quite answer his question, I believe.
You have to point not just to people called logicians, by themselves or others, but to useful logical progress made by such people.
Boolos did Frege’s theorem, Quine did New Foundations, among other things, Kripke our standard modal-logic semantics… I don’t how useful they are, but they’re definitely logic.
That doesn’t quite answer his question, I believe.
You have to point not just to people called logicians, by themselves or others, but to useful logical progress made by such people.
Boolos did Frege’s theorem, Quine did New Foundations, among other things, Kripke our standard modal-logic semantics… I don’t how useful they are, but they’re definitely logic.