Rudolf Carnap (May 18th 1891 - September 14th 1970) was a German philosopher then American and most famous representing logical Positivisme.

Born in Ronsdorf, it made studies of physics and philosophy to the Université of Iéna (where it met Gottlob Frege and at the university of Freiburg where it made its thesis on Space with the philosopher Bruno Bauch.

In 1926, it left to take a post office at the University of Vienna and united the Cercle of Vienna founded by Moritz Schlick. It met there also Wittgenstein, which visited sometimes the Circle.

In 1928, Carnap published DER logische Aufbau der Welt where it continued the project of Bertrand Russell to base all knowledge on logic and a language phenomenalist (the base of the judicious dated )

In 1929, it wrote a handbook of logic Abriss der Logistik . In 1930, Carnap and Reichenbach found the newspaper Erkenntnis . In 1931, Carnap was named in Prague where it remained until its exile for the United States in 1935. It is during this period that it met the young person Willard Van Orman Quine with whom began a debate on the analyticity.

In the United States, he became professor at the university of Chicago where he remained of 1936 to 1952 when he published many texts of Sémantique and of modal Logique. Then, it left in Princeton and to California with UCLA where it was devoted to the philosophy of sciences and the logic of the probabilities.

Works

• DER logische Aufbau der Welt ( the logical Construction of the world , 1928)

• Logische Syntax der Sprache (1934)
• Meaning and Necessity: With Study in Semantics and Modal Logic (1947)
• Logical Foundations off Probability (1950)
• The Continuum off Inductive Methods (1952).
• the old one and new logical the , transl. General E. Vouillemin, Hermann, 1933
• “the going beyond of metaphysics by the logical analysis of the language” in Antonia Soulez, Proclamation of the Circle of Vienna and other writings , Paris, PUF, coll Philosophy of today, 1985