Tractatus Logico-Philosophicus

Also known as Logical Philosophical Treatise, Treatise on Logic and Philosophy, Logisch-Philosophische Abhandlung

philosophical work by Wittgenstein

Key facts

Author: Ludwig Wittgenstein
Original title: Logisch-Philosophische Abhandlung
Translator: Original English translation by, Frank P. Ramsey and Charles Kay Ogden
Language: German
Subject: Ideal language philosophy , logic and metaphysics
Publisher: First published in W. Ostwald's Annalen der Naturphilosophie
Publication place: Leipzig , Weimar Germany
Published in english: Kegan Paul, 1922
Media type: Print
Text: Tractatus Logico-Philosophicus at Wikisource

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The Tractatus Logico-Philosophicus (widely abbreviated and cited as TLP) is the only book-length philosophical work by the Austrian philosopher Ludwig Wittgenstein that was published during his lifetime. The project had a broad goal: to identify the relationship between language and reality, and to define the limits of science. Wittgenstein wrote the notes for the Tractatus while he was a soldier during World War I and completed it during a military leave in the summer of 1918. It was originally published in German in 1921 as Logisch-Philosophische Abhandlung (Logical-Philosophical Treatise). In 1922 it was published together with an English translation and a Latin title, which was suggested by G. E. Moore as homage to Baruch Spinoza's Tractatus Theologico-Politicus (1670).

The Tractatus is written in an austere and succinct literary style, containing almost no arguments as such, but consists of 525 declarative statements, which are hierarchically numbered.