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Apr
3
comment Is an SD card a fair coin… to me?
@ShreevatsaR But the OP's concern seems to be that "fairness" isn't well-defined, and it is. I don't understand where "If I'm just as likely to assign an outcome to one side of this SD card as to the other, then it must be a fair." comes from at all.
Apr
2
comment Is an SD card a fair coin… to me?
I don't understand the problem. Flip it 1000 times. If you get roughly 50% of each outcome, it's probably about fair. Where does subjectivity and knowledge come into it?
Apr
2
answered What is the 5000th happy prime number?
Apr
2
comment What is the 5000th happy prime number?
Is the Wiki link I edited in correct?
Apr
2
revised What is the 5000th happy prime number?
added 55 characters in body
Apr
2
awarded  Tumbleweed
Apr
1
comment Visually stunning math concepts which are easy to explain
"infinite squares"?
Apr
1
comment Prove the ring $a+b\sqrt[3]{2}+c\sqrt[3]{4}$ has inverse and is a field
@ElliotG Do you know Bézout's theorem for polynomials? Most of what I said is really just jargon, but if you don't know that theorem, I don't know any way to do what you're trying to do.
Apr
1
answered Prove the ring $a+b\sqrt[3]{2}+c\sqrt[3]{4}$ has inverse and is a field
Mar
30
comment Strategies for developing explicit formulas for nth term given recurrence relation?
A strategy that happens to work in this case is to examine sequences following similar, but simpler recurrence relations, and see how they relate to the original sequence. For example, you might expect the sequence $b_{n+1}=2b_n$ to resemble the sequence $a_n$. Try examining that relationship systematically.
Mar
29
comment Is my book wrong? Fractional word problem.
Also, your book's notation is contrary to convention as I know it - $10\frac{1}{2}$ is not $10+\frac{1}{2}$, it's $10\times \frac{1}{2}$. You do sometimes see fractions written the way the book is writing them, but not usually in formulae...
Mar
27
comment What is the cardinality of the set of infinite cardinalities?
Can ZFC actually prove that that those iterated power sets all exist and are all distinct?
Mar
27
comment Fractional exponents
"Therefore" is misleading. It's a definition. The fact that this works requires proof, and is the reason for the definition.
Mar
27
comment “Simple” beautiful math proof
Huh? "There are no draws, therefore there exists a way one player can force a victory"? That doesn't appear to follow.
Mar
26
revised Showing that this local max is a global max
edited tags
Mar
26
asked Showing that this local max is a global max
Mar
24
revised Doing take aways
added 1 characters in body
Mar
23
answered Doing take aways
Mar
22
comment Closure of a set is the set of limit points.
What is your definition of $\overline A$? It seems to be the set of points $x$ such that any neighborhood of $x$ contains a point of $A$.
Mar
22
revised What is the importance of Hilbert and Birkhoff in mathematics in the twentieth century?
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