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visits member for 1 year, 7 months
seen Aug 1 at 0:46

Kids in rectangles irritating sick urchins rattling foxes, directory.kirisurf.org lol


Aug
15
asked Is probability and the Law of Large Numbers a huge circular argument?
Aug
12
awarded  Investor
Aug
12
accepted Keep on getting wrong value for linear regression $\beta$ estimator derivation
Aug
10
comment Does the series $1 + \frac{1}{2} - \frac{1}{3} + \frac{1}{4} + \frac{1}{5} - \frac{1}{6} + \dots$ converge?
This series actually converges by the alternating series test. This is a theorem that states that if an infinite series is alternating, then it converges iff the $n^{\text{th}}$ term goes to $0$ as $n$ goes to $\infty$.
Aug
8
accepted Is this the correct way to derive the generating series?
Aug
8
accepted Generating functions for election results
Aug
8
accepted Proving the existence of a unique planar embedding
Aug
2
asked Proving the existence of a unique planar embedding
Aug
2
comment What is the absolute minimum that must be accepted/defined in order to prove 1+1=2?
I think the Peano axioms would do perfectly. And of course a definition of the decimal system, since peano axioms are written in essentially a unary system.
Aug
2
comment Proving that a “prime graph” is connected
Hmm. I wonder why induction is so useful in graph theory - I should really start using it more rather than crutching everything using proofs by contradiction (which also seem to appear way more often in graph theory).
Aug
1
accepted Proving that a “prime graph” is connected
Aug
1
asked Proving a fact about 4-regular graphs
Aug
1
comment Proving that a “prime graph” is connected
What is that? I haven't learned anything like that.
Aug
1
asked Proving that a “prime graph” is connected
Aug
1
asked Generating functions for election results
Aug
1
asked Is this the correct way to derive the generating series?
Jul
28
asked Four-color theorem from triangleless graphs
Jul
26
comment Proving that a map formed by a closed curve is always 2-colorable
Also, why is each vertex of even degree?
Jul
25
comment Proving that a map formed by a closed curve is always 2-colorable
Oh I see. Then coloring faces :). I vaguely remember a theorem stating the two are equivalent though...
Jul
24
comment Proving that a map formed by a closed curve is always 2-colorable
The question wants me to color the vertices.