goobie

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12 Questions

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12	Showing $[0,1] \times [0,1]$ is a manifold with boundary
6	How does gluing work?
5	Bijection between $P^2 (\mathbf R)$ and planes in $\mathbf R^3$?
5	Gluing manifolds
4	Topology on Klein bottle?

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168 Reputation

+20	How to show $M$ a 2-manifold?
+5	Bijection between $P^2 (\mathbf R)$ and planes in $\mathbf R^3$?
+10	Finding speed and length of a line
+5	Showing $[0,1] \times [0,1]$ is a manifold with boundary

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10 Answers

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7	Will we get all real numbers if we add all limits?
5	Can any subset of $\mathbb{R}^2$ be expressed in form $A\times B$, where $A$ and $B$ are subsets of $\mathbb{R}$?
3	prime ideals of $T=\mathbb{R}[X,Y,Z]$
2	How to show $M$ a 2-manifold?
1	Finding speed and length of a line

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16 Tags

7 sequences-and-series	3 abstract-algebra
7 rational-numbers	2 manifolds × 12
7 irrational-numbers	2 real-analysis
7 limit	1 integral
5 elementary-set-theory	1 calculus

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