# 3.04 explained — Tractatus Logico-Philosophicus

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

## What happens

Wittgenstein examines the concept of a priori truth, suggesting that a thought whose very possibility guarantees its truth would be a priori true.

## Themes in this chapter

### Logic and Tautology

The notion of a priori truth is closely tied to tautologies and logical truths.

## Character check-ins

### Mr. Wittgenstein

Author of the proposition.

## Key lines

> An a priori true thought would be one whose possibility guaranteed its truth.

A thought that is true a priori is one that cannot be false because its very existence implies its truth.

_Clarifies the concept of a priori truth in terms of possibility and necessity._

## Links

- HTML: https://www.betterreads.online/discover/tractatus_logico_philosophicus_se/chapters/3-04
- Book: https://www.betterreads.online/discover/tractatus_logico_philosophicus_se
- All chapters: https://www.betterreads.online/discover/tractatus_logico_philosophicus_se/chapters