Abstract
Logical positivism and the Vienna Circle are almost synonymous. The Vienna Circle grew in strength throughout the 1920s, attracting philosophers such as Rudolf Carnap, Friedrich Waismann, and Otto Neurath and mathematicians and scientists such as Kurt Gödel and Hans Hahn. It started as an intellectual club (initially known as the Ernst Mach Society), with Moritz Schlick, Professor of Philosophy at the University of Vienna, as its leading light. As the club debated and discussed problems in science, logic, and philosophy, a definite consensus emerged. The members of the Vienna Circle were bound, initially at least, by commitments, to.