![Note on Axiomatic Set Theory I. The Independence of Zermelo's "Aussonderungsaxiom" from Other Axioms of Set Theoryby Toshio Nishimura;Note on Axiomatic Set Theory II. A Construction of a Model Satisfying the Axioms of set Theory without Zermelo's Aussonderungsaxiom in a certain axiom system of ordinal numbersby Toshio Nishimura]()
Note on Axiomatic Set Theory I. The Independence of Zermelo's "Aussonderungsaxiom" from Other Axioms of Set Theoryby Toshio Nishimura;Note on Axiomatic Set Theory II. A Construction of a Model Satisfying the Axioms of set Theory without Zermelo's Aussonderungsaxiom in a certain axiom system of ordinal numbersby Toshio NishimuraReview by: Gert Heinz Müller · The Journal of Symbolic Logic · 1964