On Wittgenstein’s Tractatus

The Tractatus Logico-Philosophicus, the only book-length work that Wittgenstein published in his lifetime, is a short book of 145 pages but it covers a wide range of philosophical problems. While the book's main argument is on the structure of language and the world and the relationship between the language and the world, Wittgenstein also talks about subjects like the purpose of philosophy; solipsism; the nature and form of logic; probability theory; the theory of number; induction and causality; and the matters related to religion, ethics, and life. The perspectives that he offers on these subjects is short, almost aphoristic, and this has earned the Tractatus the reputation of an obscure treatise. But he has drawn an intimate linkage between the position that he takes on various issues and his main argument—everything that he says in the book is a consequence or corollary of his main argument and this brings some clarity on his sayings in the book.