Tractatus Logico-Philosophicus
Author: first_name: Ludwig
last_name: Wittgenstein
Language: English
Year: 1922

Tractatus Logico-Philosophicus is the only book-length philosophical work published by the Austrian philosopher Ludwig Wittgenstein during his lifetime. He wrote it as a soldier and a prisoner of war during World War I. The slim volume (fewer than eighty pages) comprises a system of short statements, numbered 1, 1.1, 1.11, 1.12, etc., through to 7, intended to be such that 1.1 is a comment on or elaboration of 1, 1.11 and 1.12 comments on 1.1, and so forth. It is an ambitious project to identify