Comments on Hookway, “The Pragmatic Maxim and the proof of pragmatism (2): after 1903”

Abstract

In his article published in the current issue of Cognitio, Professor Christopher Hookway addresses the question of Peirce’s proof of pragmaticism after 1903. It is essential to give a clear account of the details of Peirce’s proof, specially of his use of the then newly-discovered logic of Existential Graphs (EG). Hookway’s aim is to answer why Peirce did believe a proof of pragmaticism needed the Existential Graphs. I suggest that Peirce’s proof can still be maintained, since some modifications are made. My question is to twofold: first, given the logical theory of EGs at hand, can the proof itself be reconstructed with it, and, second, if so, how?