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location  Lancaster, United Kingdom  
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Just when I thought I was out, they pull me back in
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Obscure Names in Mathematics
Oh come on  if we are going to add theorems named after the wrong people then we will be here all day... 
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Zeromean assumptions concerning r.d.'s when reading graduatelevel probability texts
Does applying the meanzero case to $X{\bf E}X$ not answer this? 
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reviewed  Close Geometrically connected curve 
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Geometrically connected curve
This question appears to be offtopic because it is solved by using a search engine 
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reviewed  Close state of art pseudoboolean optimization solver 
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Intuition behind $\zeta(2) = \frac{\pi^2}{6}$
Not everything in maths can be justified by a reason that feels "intuitive", and "intuition" is highly subjective 
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reviewed  Close Conformal map from a sector of unit disk onto upper half plane 
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reviewed  Close How to prove that the vertices of a convex hull are only defined by some specific subsets, in this particular case 
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reviewed  Close What should be considered a finite size of an infinite dimensional space? 
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What should be considered a finite size of an infinite dimensional space?
I mean, isn't this all just Hilbert's hotel? I really think that it would be more fruitful to give the actual problem you're thinking about, and then we can see if there are some finitely generated or finitedimensional objects lurking in the problem that allow one to employ some kind of size argument 
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What should be considered a finite size of an infinite dimensional space?
Michael, the point of my example is that the map P does have a natural inverse 
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What should be considered a finite size of an infinite dimensional space?
For instance, let me take the integration map $P: A \to B$ where $A$ is the space of continuous functions $[0,1]\to {\bf R}$ that vanish at $0$, and $B$ is the space of $C^1$functions $[0,1]\to {\bf R}$ that vanish at $0$. Now should one think $A$ is larger than $B$ or is "just as big" as $B$? 
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What should be considered a finite size of an infinite dimensional space?
The question in your title is potentially interesting but very broad, but without further details about your original problem it is hard to see why one has any hope that cardinality or 'measure' arguments might be relevant 
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reviewed  Leave Open A probability application question 
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reviewed  Leave Open The behavior of series involving special subsets of the prime numbers 
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reviewed  Reject suggested edit on When is fiber dimension upper semicontinuous? 
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reviewed  Leave Closed Which univariate function satisfies $e^{g(x)} + e^{g(x)} = \alpha x$ for $x>0$ and some constant $\alpha>0$? 
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Which univariate function satisfies $e^{g(x)} + e^{g(x)} = \alpha x$ for $x>0$ and some constant $\alpha>0$?
It seems to me that you would do better not to presume to read the minds and guess the abilities of people who vote to close. 
Oct 19 
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Representations of the two dimensional nonabelian Lie algebra
It is strange that he doesn't explicitly mention the smallest solvable nonabelian Lie algebra, though 
Oct 18 
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When is the group algebra $L^1(G)$ semisimple?
Unless you have misquoted Folland? 