Search All of the Math Forum:
Views expressed in these public forums are not endorsed by
NCTM or The Math Forum.



Well Ordering
Posted:
Feb 13, 2013 5:17 AM


Let S be a set with cardinality aleph_nu. Since S is equinumerous with omega_nu, there's . . a bijection h:S > omega_nu.
Thus S is well ordered by x <= y when h(x) <= h(y); . . well ordered without using AxC. Hm...



