Non‐Analytic Logic

A logic focusing on the analytic a priori and explicitly rejecting the synthetic a priori ¹ developed in the early decades of the 20th century, largely through the efforts of the Logical Empiricists. This group was very influenced by Wittgenstein's early work Tractatus Logico‐Philosophicus. But Wittgenstein himself, later on, departed from the Tractatus in significant ways that the Logical Empiricists 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.