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 Mar 14 comment In how many of the integer numbers between 0 and 10,000 does the digit 3 appear to the left of 4 @Thomas hahaha. Pyth, 16 bytes: lf:`T"3.*4"0U^T4 Mar 14 comment In how many of the integer numbers between 0 and 10,000 does the digit 3 appear to the left of 4 ... or just seq 10000 | grep '3.*4' | wc -l -> 523. Jan 18 revised Draw cards repeatedly, until we find the ace of spades. Probability that we draw between 20 and 30 cards? Rollback to revision 1. The edit removes lots of important content from the original question, which makes many of the answers not make sense. Jan 18 suggested approved edit on Draw cards repeatedly, until we find the ace of spades. Probability that we draw between 20 and 30 cards? Feb 17 suggested rejected edit on Using rules of inference with quantified statements Dec 29 awarded Talkative Dec 23 revised Do we really need reals? more gooder grammar, formatting Dec 23 suggested approved edit on Do we really need reals? Dec 19 awarded Constituent Dec 11 revised Ways to write “50” fixed some grammar, removed fluff Dec 9 awarded Caucus Jul 18 revised How can I find the smallest set of groups of $n$ elements such that every element is in the same group as every other at least once? added 2 characters in body Jul 18 asked How can I find the smallest set of groups of $n$ elements such that every element is in the same group as every other at least once? May 21 awarded Quorum Apr 29 revised How can I write the numbers 5 and 7 as some sequence of operations on three 9s? removed unnecessary bold, added moar LaTeX! Apr 29 suggested approved edit on How can I write the numbers 5 and 7 as some sequence of operations on three 9s? Apr 5 revised explore the convergence of series with ln(n) converted image to MathJax Apr 5 suggested approved edit on explore the convergence of series with ln(n) Apr 2 suggested rejected edit on Does anyone know what this notation means: $n^{\underline{n}}$? Feb 18 revised Factoring the quintic polynomial $x^5+4x^3+x^2+4=0$ title mathjaxified, cleaned up stray dots