ABSTRACT
As founding figures of the tradition of Austrian philosophy, Bolzano’s and Brentano’s theories possessed multiple connections to the logical empiricists. Bolzano’s analysis of propositions using the method of variation influenced the Vienna Circle’s conception of analytic propositions and Schlick’s conception of probability. Bolzano’s view of infinity was closely analyzed by Hans Hahn. The opposing views of Brentano and Mach about dualism vs. neutral monism were well known to the logical empiricists. Brentano shared some of the Circle’s empiricist outlook and scientific methodology of philosophy. But this chapter also shows that Schlick rejected Brentano’s view of judgments as non-predicative and the view of evidence based on it, and instead adopted a Machian view about the economy of thought, a view rejected by Brentano.
