Exploring the Significance of Zermelo's Axiom of Choice and Cantor's Set Theory Contributions

Every set can be well-ordered or, more precisely, that it is always possible to bring any well-defined set into the form of a well-ordered set.

Now to call it a law of thought was implicitly to claim self-evidence for it, but he must have given up that claim at some point.

Cantor conceived set theory in a sequence of six papers published in the Mathematische Annalen during the five year period 1879–1884.