Rudolf Carnap developed logical empiricism through logical syntax, explication, formal semantics, and a tolerant approach to choosing linguistic frameworks for science.
Intellectual setting
Carnap joined the Vienna Circle after Schlick’s invitation and later carried its projects through exile, formal semantics, and postwar philosophy of science.
Key ideas
Explication
Vague concepts can be replaced by more precise concepts suited to explicit scientific purposes.
Principle of tolerance
There is no uniquely correct logical language independent of the practical work a framework is meant to do.
Legacy
His tools of explication and framework analysis remain central to analytic philosophy and philosophy of science.