Re: [math-fun] New (to me) proof of divergence of the harmonic series

Googling I find: 31 proofs that the harmonic series converges are collected in these two papers: http://faculty.prairiestate.edu/skifowit/htdocs/harmapa.pdf http://faculty.prairiestate.edu/skifowit/htdocs/harm2.pdf Your proof is number 8 in the list. :-)