## Russell’s Logic and Analytic Philosophy: In Commemoration of the Centenary of Russell’s Visit to China

**Chen Bo;Department of Philosophy, Peking University;**

Bertrand Russell's(羅素) main academic achievements consist in the fields of logic and analytic philosophy. His contributions to logic include that he put forward the vicious-circle principle, and developed the simple-type theory and ramified-type theory, so as to avoid paradoxes; he based himself on his type theory, establishing such theories as propositional logic, first-order predicate logic, identity theory, and theory of descriptions; and he maintained the logicist proposition, applied logic to guarantee the consistency and reliability of mathematics, and deduced a lot of mathematical theories in his logical system. His contributions to analytic philosophy include that he rejected the theory of internal relations by means of the theory of external relations, thus rebelling against Kant's and Hegel's idealistic philosophy; he distinguished the knowledge of truths from the knowledge of things, the knowledge by acquaintance from the knowledge by description, and the primitive truths from the derivative truths, and his epistemology has a strong empiricist and skeptic flavor; he developed logical atomist philosophy, asserting that there is a structural parallel between the ideal language and the external world; and he put forward his theory of logical constructions based on sense data, trying to eliminate too many ontological settings of natural language and retaining "the robust sense of reality" even in academic research. Due to his creative work and its significant academic influence, Russell has been a master and giant in the fields of logic and analytic philosophy.

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