# 5.21 explained — Tractatus Logico-Philosophicus

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

## What happens

Wittgenstein discusses how internal relations between propositions can be made explicit by presenting a proposition as the result of an operation on other propositions, which serve as the bases of that operation.

## Themes in this chapter

### Logical Atomism

The idea that propositions can be built from simpler propositions through operations reflects the atomistic structure of language.

### Picture Theory of Language

Internal relations between propositions are made manifest through operations, aligning with the picture theory's emphasis on logical form.

## Character check-ins

### Mr. Wittgenstein

Author of the proposition, explaining the concept of operations and internal relations.

## Key lines

> We can bring out these internal relations in our manner of expression, by presenting a proposition as the result of an operation which produces it from other propositions (the bases of the operation).

We can make internal relationships explicit by showing how a proposition is generated through an operation applied to other propositions.

_Clarifies the method of revealing logical connections between propositions._

## Links

- HTML: https://www.betterreads.online/discover/tractatus_logico_philosophicus_se/chapters/5-21
- Book: https://www.betterreads.online/discover/tractatus_logico_philosophicus_se
- All chapters: https://www.betterreads.online/discover/tractatus_logico_philosophicus_se/chapters