books.google.com - From the reviews: Serious graduate students ... would profit from reading the book for the mathematical maturity they would gain in the process. The conversational, almost Socratic, style of exposition is well suited to giving students some insight into the process of doing mathematics as well as to...https://books.google.com/books/about/Discovering_Modern_Set_Theory_The_basics.html?id=x74azoKzb_MC&q=Theorem+16&utm_source=gb-gplus-shareDiscovering Modern Set Theory: The basics

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## Discovering Modern Set Theory: The basicsBy Winfried Just, Martin Weese |