On Nov 29, 12:47 pm, "Jesse F. Hughes" <je...@phiwumbda.org> wrote: > WM <mueck...@rz.fh-augsburg.de> writes: > > Use induction to show that the diagonal number cannot have more > > digits than every entry of the list. > > Great! Er, but how does induction *do* that?
It is simple, Just move to Wolkenmuekenheim where the diagonal number changes. Use induction to show that whatever it changes to has fewer digits than some entry in the list.