Logical categories, signs, and elucidation in Frege

From algebraic logic to Logistic. The development and historical significance of Louis Couturat’s forgotten logicism.

"The Polemical Frege: Signs, Language and Formalization in Frege’s Dialectic with Mathematical Formalism"

Tolerance and convention: The transition from universalist to schematic conceptions of logic in the early work of Carnap and Quine.

Wittgenstein as a philosopher of mathematical practice