It seems that Cantor rather than Cauchy suggested the Cauchy equivalence class definition of $\mathbb{R}$. I am looking for the original book or paper (for whomever originally suggested the Cauchy definition.) My question is: what is the citation for this original source?
2026-04-01 16:48:33.1775062113
Looking for an original citation of Cantor
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See Cantor's definition of real number: