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 Mar 31 awarded Yearling Mar 25 accepted Intutively, why does $x^{\frac{1}{\ln x}} = e$? Mar 24 revised Is there a connection between the “independent sets” in matroids and “independent sets” in graph theory? edited title Mar 24 asked Is there a connection between the “independent sets” in matroids and “independent sets” in graph theory? Mar 22 comment Immortal cell lines: how many cells will be alive after $t$ time steps? @joriki Can you elaborate on how linearity of expectation applies here? If all I know about $X_k$ is its expected value, I'm not sure that I can conclude anything about $X_{k+1}$. Mar 22 revised Immortal cell lines: how many cells will be alive after $t$ time steps? added 6 characters in body Mar 22 asked Immortal cell lines: how many cells will be alive after $t$ time steps? Feb 25 comment Math Puzzle - Fishing If you catch negative fish, did you bring fish from another place and throw them in the lake? Feb 24 comment Intutively, why does $x^{\frac{1}{\ln x}} = e$? @Thomas Andrews That second observation is beautiful. You should concert that to an answer. Feb 24 asked Intutively, why does $x^{\frac{1}{\ln x}} = e$? Jan 10 awarded Revival Jan 10 comment Terminology for a monoid with a total ordering on the elements? @J.-E.Pin Thanks for pointing this out. Answer updated! Jan 10 revised Terminology for a monoid with a total ordering on the elements? added 193 characters in body Jan 10 comment Terminology for a monoid with a total ordering on the elements? @JEPin Hmm, that's a good point. I suppose the term "totally ordered monoid/semigroup" would be more appropriate. Jan 4 comment How to find the shortest path in a weighted graph? How did you get that number? Are you familiar with Dijkstra's algorithm? Dec 26 revised Is this a property of nilpotent operators? Grammar fix in title Dec 26 comment Is there a standard set of axioms of set theory in which set complements exist? @DanChristensen Just pure curiosity. I understand that the limited complement makes a lot of sense and I use it all the time. Dec 25 accepted Is there a standard set of axioms of set theory in which set complements exist? Dec 25 asked Is there a standard set of axioms of set theory in which set complements exist? Dec 20 awarded Popular Question