4.05 Reality is compared with a sentence.

Cf. 2.223. Why not “a proposition [or sentence] is compared with reality,” as you might expect? Perhaps to prompt the idea that we cannot really get between language and reality in order to then compare the one with the other. If it is not clear what it is to, or how we, compare x with a proposition, then it is equally unclear what it means to compare x with reality or the world. Cf. Frege’s ideas about the correspondence theory of truth.