Wittgenstein, Schlick, and the 'Arbitrariness of Grammar'
Mauro Engelmann
I first explain Wittgenstein’s reasons for a comprehensive ‘grammar’ in Philosophical Remarks (1930). With this in hand, I aim to explain why the thesis (or insight) of the ‘arbitrariness of grammar’ is introduced in his philosophy. Contrary to Hacker (2000), who takes ‘arbitrariness’ as a major break with the Tractatus , I intend to show that it is actually required in order to preserve a fundamental insight of that book, namely, that logic is not justifiable. Wittgenstein’s move towards ‘arbitrariness’ will show Schlick as an important interlocutor at the time.