most recent 30 from http://mathoverflow.net 2013-05-22T03:20:03Z http://mathoverflow.net/feeds/user/5297 http://www.creativecommons.org/licenses/by-nc/2.5/rdf http://mathoverflow.net/questions/21025/proofs-that-require-the-existence-of-large-finite-numbers/21072#21072 unknown 2010-04-12T06:00:11Z 2010-04-12T06:11:17Z

<p><a href="http://en.wikipedia.org/wiki/Graham%27s_number" rel="nofollow">Graham's number</a> is surely a canonical example.</p>