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Paul
Posts:
775
Registered:
7/12/10


History of equivalence classes
Posted:
Mar 21, 2013 7:43 AM


Who developed the elementary theory of equivalence classes? For example, who first used the idea of representing equivalence classes by a single element, and then proving functions f are welldefined on the classes by proving that a ~ b implies f(a) ~ f(b)? Was this Cantor?
Thanks,
Paul Epstein



