# 5.122 explained — Tractatus Logico-Philosophicus

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

## What happens

Wittgenstein states that if a proposition p follows from q, then the sense of p is already contained within the sense of q.

## Themes in this chapter

### Logical Atomism

The containment of sense in logical consequence reflects the atomistic structure of propositions.

## Character check-ins

### Mr. Wittgenstein

Author of the proposition.

## Key lines

> If p follows from q , the sense of “ p ” is contained in that of “ q ”.

When one proposition logically implies another, the meaning of the implied proposition is already part of the meaning of the implying proposition.

_This illustrates the internal relation between propositions in logical inference._

## Links

- HTML: https://www.betterreads.online/discover/tractatus_logico_philosophicus_se/chapters/5-122
- Book: https://www.betterreads.online/discover/tractatus_logico_philosophicus_se
- All chapters: https://www.betterreads.online/discover/tractatus_logico_philosophicus_se/chapters