Logic and Tautology

The treatment of logical truths as tautologies that say nothing about the world but show the structure of language and thought, with logic being a condition for sense rather than a body of substantive truths.

Logical form is presented as the invariant condition for any picture to represent reality.

The impossibility of expressing logical contradictions highlights the nature of logical truth as tautological and non-representational.

The notion of a priori truth is closely tied to tautologies and logical truths.

The general form of a proposition is presented as a constant logical structure, with variable content, reflecting the tautological nature of logical form.