# 3.343 explained — Tractatus Logico-Philosophicus

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

## What happens

Wittgenstein discusses definitions as rules for translating between languages, asserting that any correct symbolism must be translatable into any other according to these rules, which is what all symbolisms have in common.

## Themes in this chapter

### Limits of Language and Thought

The translatability condition implies a common logical structure that defines the limits of what can be expressed.

### Logical Atomism

The idea that all correct symbolisms share a common essence through translation rules aligns with logical atomism's search for a universal logical form.

## Character check-ins

### Mr. Wittgenstein

Author of the proposition; presents the theory of definitions as translation rules.

## Key lines

> Definitions are rules for the translation of one language into another.

A definition functions as a guideline for converting expressions from one symbolic system to another.

_Clarifies the role of definitions in connecting different languages._

> Every correct symbolism must be translatable into every other according to such rules.

Any properly constructed symbolic system can be converted into any other system using these definitional rules.

_Establishes a universal translatability condition for correct symbolisms._

> It is this which all have in common.

This translatability is the shared feature of all correct symbolisms.

_Identifies the commonality that unifies different symbolic systems._

## Links

- HTML: https://www.betterreads.online/discover/tractatus_logico_philosophicus_se/chapters/3-343
- Book: https://www.betterreads.online/discover/tractatus_logico_philosophicus_se
- All chapters: https://www.betterreads.online/discover/tractatus_logico_philosophicus_se/chapters