Uma avaliação da estrutura de tipos presente na terceira seção da begriffsschrift, à luz do cálculo lambda

Abstract

Our dissertation s theme is the Idea that, buried in Frege s unfriendly Logical notation, one finds the notion of abstraction as a key ingredient of his Begriffsschrift. This runs contrary to the ordinary appraisal, such as the one found in Van Heijenoort s introduction to that article. It runs also contrary to Frege s refusal of the possibility of referring to unsaturated entities. Still, we argue that the notion seems to be part both of Frege s philosophical positions such as the idea of quantification as second order predication and of Frege s logical practices.