# 2.17 explained — Tractatus Logico-Philosophicus

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

## What happens

Wittgenstein asserts that for a picture to represent reality—whether correctly or incorrectly—it must share a common 'form of representation' with that reality.

## Themes in this chapter

### Picture Theory of Language

This proposition directly articulates the core requirement of the picture theory: a shared form of representation between picture and reality.

## Character check-ins

### Mr. Wittgenstein

Author of the proposition, defining the necessary condition for pictorial representation.

## Key lines

> What the picture must have in common with reality in order to be able to represent it after its manner—rightly or falsely—is its form of representation.

For a picture to depict reality at all (whether accurately or inaccurately), it must share a structural form with that reality.

_Clarifies the essential condition for representation: a common logical or structural form._

## Links

- HTML: https://www.betterreads.online/discover/tractatus_logico_philosophicus_se/chapters/2-17
- Book: https://www.betterreads.online/discover/tractatus_logico_philosophicus_se
- All chapters: https://www.betterreads.online/discover/tractatus_logico_philosophicus_se/chapters