User user43208

2 votes

$\pi_1(X)\cong \mathbb Z_{p^n}$

answered Sep 17, 2013 at 23:32

2 votes

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Universality of $(\mathbb Q,<)$

answered Sep 17, 2013 at 16:03

2 votes

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Is $x\mapsto \sqrt{xx^*}$ a norm?

answered Sep 27, 2013 at 19:58

2 votes

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Group completions and the induced homomorphisms

answered Sep 13, 2013 at 13:27

2 votes

Question about affine subspaces

answered Sep 22, 2013 at 15:07

2 votes

What is a number?

answered Sep 15, 2013 at 23:21

2 votes

Is the boundary of the unit sphere in every normed vector space compact?

answered Sep 15, 2013 at 15:27

2 votes

$Spec(k[x]_{(x)})$ as a shred of curve.

answered Sep 16, 2013 at 13:30

2 votes

Evaluating sum of a combination series

answered Sep 16, 2013 at 14:08

2 votes

Accepted

Doubt on how to prove proposition about bundles

answered Sep 14, 2013 at 19:45

2 votes

Tangent half-angles and linear fractional transformations

answered Aug 4, 2013 at 0:17

2 votes

Finding the probability of rolling sixes in both die

answered Sep 28, 2013 at 20:17

2 votes

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$f(X \cap Y) \subset f(X) \cap f(Y) $

answered Sep 29, 2013 at 14:39

2 votes

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Prove that $(C \cap D)^\vee = C^\vee + D^\vee$.

answered Oct 4, 2013 at 22:06

2 votes

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Give an example of a lattice in which every element (except 0, 1) has four complements.

answered Sep 30, 2013 at 13:13

2 votes

Can I Have Some More Examples Of Uniform Spaces Please?

answered Oct 10, 2013 at 0:54

2 votes

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Exact sequence such that $Hom (\mathbb{\prod Z}, -)$ is not exact

answered Oct 4, 2013 at 18:35

2 votes

Help me prove equivalently of regular semigroup and group.

answered Nov 26, 2015 at 19:28

2 votes

Accepted

Show that $(a+b+c)^\alpha<a^\alpha+b^\alpha+c^\alpha, 0<\alpha<1$

answered Oct 11, 2013 at 15:09

2 votes

On Homeomorphim

answered Oct 12, 2013 at 4:00

2 votes

Show that $(p,X)/(pℤ[X])$ isomorph to $(X)$

answered Oct 12, 2013 at 15:35

2 votes

Proof that $q^2$ is indivisible by 3 if $q$ is indivisible by 3.

answered Oct 6, 2013 at 15:28

2 votes

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Prove $ \sum_{1\leq k < n} k^{\underline{m}}=\frac{n^{\underline{m+1}}}{m+1} $ by induction on $m$

answered Oct 13, 2013 at 21:16

2 votes

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A paratopological group with intersection of neighborhoods of a point non-closed

answered May 29, 2014 at 13:27

2 votes

Is there any general method of finding the lower bound of $x$ that satisfy the inequality?

answered Nov 21, 2014 at 20:12

2 votes

$A \oplus B = A \oplus C$ imply $B = C$?

answered Oct 23, 2013 at 17:36

1 vote

Difficulties in grasping the proof of the Heine-Borel theorem

answered Oct 19, 2013 at 21:33

1 vote

Sketching graphs : Most importaint points

answered Oct 20, 2013 at 18:36

1 vote

How to find non-isomorphic trees?

answered Oct 23, 2013 at 19:25

1 vote

What are the uses of "squeezing"?

answered Jun 1, 2014 at 15:12

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202 Answers

$\pi_1(X)\cong \mathbb Z_{p^n}$

Universality of $(\mathbb Q,<)$

Is $x\mapsto \sqrt{xx^*}$ a norm?

Group completions and the induced homomorphisms

Question about affine subspaces

What is a number?

Is the boundary of the unit sphere in every normed vector space compact?

$Spec(k[x]_{(x)})$ as a shred of curve.

Evaluating sum of a combination series

Doubt on how to prove proposition about bundles

Tangent half-angles and linear fractional transformations

Finding the probability of rolling sixes in both die

$f(X \cap Y) \subset f(X) \cap f(Y) $

Prove that $(C \cap D)^\vee = C^\vee + D^\vee$.

Give an example of a lattice in which every element (except 0, 1) has four complements.

Can I Have Some More Examples Of Uniform Spaces Please?

Exact sequence such that $Hom (\mathbb{\prod Z}, -)$ is not exact

Help me prove equivalently of regular semigroup and group.

Show that $(a+b+c)^\alpha<a^\alpha+b^\alpha+c^\alpha, 0<\alpha<1$

On Homeomorphim

Show that $(p,X)/(pℤ[X])$ isomorph to $(X)$

Proof that $q^2$ is indivisible by 3 if $q$ is indivisible by 3.

Prove $ \sum_{1\leq k < n} k^{\underline{m}}=\frac{n^{\underline{m+1}}}{m+1} $ by induction on $m$

A paratopological group with intersection of neighborhoods of a point non-closed

Is there any general method of finding the lower bound of $x$ that satisfy the inequality?

$A \oplus B = A \oplus C$ imply $B = C$?

Difficulties in grasping the proof of the Heine-Borel theorem

Sketching graphs : Most importaint points

How to find non-isomorphic trees?

What are the uses of "squeezing"?