Abstract

When Benno Kerry (1858?89) died at the age of 30 he was already well?known for his competent and thoroughgoing philosophical criticism of Cantor?s set theory and Frege?s early philosophy of mathematics.Before his death he was working on a theory of limits (Grenzbegriffe) which was an elaboration of his Habilitationsschrift of 1884 and of which only a first part was published posthumously.This paper gives a survey of Kerry?s basic biographical data, and a first description of his Habilitationsschrift which had been missing for a long time but was found by chance in the Nachlass of the German philosopher Leonard Nelson