# 4.05 explained — Tractatus Logico-Philosophicus

> Chapter companion for Tractatus Logico-Philosophicus by Ludwig Wittgenstein.

## What happens

The proposition serves as a standard against which reality is measured or compared.

## Themes in this chapter

### Picture Theory of Language

The proposition is a picture of reality, and reality is compared with it.

## Character check-ins

### Mr. Wittgenstein

Author of the proposition

## Key lines

> Reality is compared with the proposition.

We check whether reality matches what the proposition says.

_This expresses the core idea of truth as correspondence between proposition and fact._

## Links

- HTML: https://www.betterreads.online/discover/tractatus_logico_philosophicus_se/chapters/4-05
- Book: https://www.betterreads.online/discover/tractatus_logico_philosophicus_se
- All chapters: https://www.betterreads.online/discover/tractatus_logico_philosophicus_se/chapters