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Sep
5
comment Why do you add +1 in counting test questions?
It's sad to see "add 1 to counting test problems" being taught as one of those "rules"...
Aug
25
comment Paradoxes without self-reference?
The liar paradox and also the "set of all sets" paradox seem to be true paradoxes, revealing incompleteness of certain systems of logic or set theory.
Aug
25
comment Paradoxes without self-reference?
Also this is not actually a paradox but a misunderstanding of infinite series.
Aug
16
comment Is this a new function?
There are an infinite amount of functions to "discover."
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?