Non‐Analytic Logic

A logic focusing on the analytic a priori and explicitly rejecting the synthetic a priori developed in the early decades of the 20th century, largely through the efforts of the L ogical E mpiricists. This group was very influenced by W ittgenstein's early work T ractatus L ogico‐ P hilosophicus . But W ittgenstein himself, later on, departed from the T ractatus in significant ways that the L ogical E mpiricists did not follow. Wittgenstein came later to accept the synthetic a priori, and out of this insight comes a non‐analytic logic that differs from standard 20th century logic in many distinct ways. This paper details these differences.