1920-1950 CE
Logical positivism is an early 20th-century movement combining empiricism with formal logic, aiming to eliminate metaphysics.
Vienna Circle formed 1920s. A.J. Ayer's "Language, Truth and Logic" (1936). Quine's "Two Dogmas" (1951) challenged foundations.
Moritz Schlick, Rudolf Carnap, Otto Neurath, A.J. Ayer, Carl Hempel, critics: Quine, Popper.
Verification principle. Elimination of metaphysics. Analytic versus synthetic. Physicalism. Unity of science. Emotive theory of ethics.
Shaped analytic philosophy. Influenced philosophy of science. Contributed to decline of traditional metaphysics.