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visits member for 4 years
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4h
reviewed Leave Open Area of shape without all dimensions
4h
reviewed Close Proving irrational number between two rational numbers.
4h
reviewed Close Physics Problem Help
4h
comment Geometry question with three triangles
"as shown"?${}$
8h
comment Function Converts all numbers to even number?
It seems to me that the OP's requirement is an algorithmic one, and is unambiguously satisfied by this answer.
8h
comment Function Converts all numbers to even number?
@HDE226868: No, $n+n$ is addition, pure and simple.
12h
comment Cut RAIT pieces from a RAIT cake
Oh yes. Sorry.${}$
13h
comment Cut RAIT pieces from a RAIT cake
That's not what I said at all, Erel. Read my comment again, especially the second sentence.
17h
comment Comparing the size of square roots
It works in this case! I can't give a counterexample, because you don't say how you approximate $\sqrt n$ in general. But it looks very dodgy to me.
18h
comment Cut RAIT pieces from a RAIT cake
Why do you need that moving knife? You can just cut the original triangle into four RAITs, can't you?
19h
comment To find limit points of the set { $ \frac{1}{n} +\frac{1}{m} : n.m = 1,2,3,…$}
Here is a similar question (not quite a duplicate) that you might want to look at.
1d
comment True or false If $p-1$ and $p+1$ is the largest twin prime pair then $(p-1)/(p+1)$ defines a specific rational number
What are these "missing" rational numbers? I can't make sense of your idea at all.
1d
comment Given S, prove that C is an open cover, but there is no finite subcover of C that covers S.
@mmm: The square root of $2$ is not in $S$ because the square root of $2$ is not in $\mathbb Q$.
1d
comment Given S, prove that C is an open cover, but there is no finite subcover of C that covers S.
You don't have to cover $\sqrt 2$, because $\sqrt 2 \notin S$. So your intuition is wrong on this part of the proof.
1d
comment proving a tricky limit is zero
You're asking all these questions about more or less the same thing, but none of them quite makes sense. What do you really want to know?
1d
comment proving a tricky limit is zero
The limit is $1$, not $0$.
1d
comment How does the max of $\prod_i a_i$ work?
Looks good to me.
1d
answered number of integers limit proof
1d
comment number of integers limit proof
@user46944: The limit of each side of the equality is $\infty$. How does this help?
1d
comment Finding winner of flipping game
It is misleading to call it 'flipping', because that usually means changing a bit from $1$ to $0$ or from $0$ to $1$. Perhaps 'clearing a non-zero bit' would be better than 'flipping an active bit'. Also, you forgot to stipulate that at least one non-zero bit has to be cleared (otherwise the game will never end).