Wetzel's Problem, Paul Erdös, and the Continuum Hypothesis: A Mathematical Mystery
Wetzel's problem, Paul Erdös, distinct analytic functions, Boneyard Book
We are concerned here with the curious history of Wetzel's problem: If [falpha] is a family of distinct analytic functions (on some fixed domain) such that for each z the set of values [falpha(z)] is countable, is the family itself countable?
© 2015 American Mathematical Society
Garcia, S.R., Shoemaker, A.L., Wetzel’s Problem, Paul Erdös, and the Continuum Hypothesis: A Mathematical Mystery, Notices of the American Mathematical Society 62 (2015), no. 3, 243-247.