The paper is the first half of an article which deals with the antimetaphysicism of early and middle phase of Wittgenstein's philosophy. It is divided into a series of consecutive sections devoted to particular aspects of the Tractatus and earlier Wittgenstein's works. It presents him as a philosopher of mathematics in the first place, shows his reluctance towards Russell's and Fregean idea of logicism and his intuitionistic bias. The second part of the article presents the reasons why Wittgenstein abandoned some of the Tractarian concepts.
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