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AATA Sets and Equivalence Relations e A GNU Free Documentation License B Hints and Answers to Selected Exercises C Notation Index Colophon Authored in PreTeXt 🔗 Section 1.2 Sets and Equivalence Relations 🔗 Subsection Set Theory 🔗 <span>A set is a well-defined collection of objects; that is, it is defined in such a manner that we can determine for any given object x x whether or not x x belongs to the set. The objects that b
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