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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