Question

Dimension of vector space of matrices simltaneously diagonalizable with A.

score 41 · Answer 1 · 2026-04-13 20:41:11

41

Views

Dimension of vector space of matrices simltaneously diagonalizable with A.

Published on 13 Apr 2026 - 20:41

score 6.3k · Answer 2 · 2026-04-14 00:28:12

6.3k

Views

Prove that [0,1] is connected.

Published on 14 Apr 2026 - 0:28

score 94 · Answer 3 · 2026-04-14 15:43:51

94

Views

Constructing another algebraic continuum via Eudoxus?

Published on 14 Apr 2026 - 15:43

score 75 · Answer 4 · 2026-04-16 15:26:07

75

Views

Determine that the function $f(x)=\sqrt{x^2-x-6} \text{ in } x_0=3$ is continous with the $\varepsilon$-$\delta$-definition of limit/criterion

Published on 16 Apr 2026 - 15:26

score 210 · Answer 5 · 2026-04-10 19:01:08

210

Views

What's the error in my proof of the statement: The product of two irrational numbers is irrational?

Published on 10 Apr 2026 - 19:01

score 90 · Answer 6 · 2026-04-14 05:40:42

90

Views

Let us have $2n+1$ intervals on the real line

Published on 14 Apr 2026 - 5:40

score 789 · Answer 7 · 2026-04-15 23:53:02

789

Views

Derived, boundary and interior of $[0,1] \cap \mathbb{Q}$

Published on 15 Apr 2026 - 23:53

score 211 · Answer 8 · 2026-04-16 11:03:32

211

Views

Is this proof on the Sylow 5-subgroups of G 100% correct?

Published on 16 Apr 2026 - 11:03

score 147 · Answer 9 · 2026-04-14 04:48:50

147

Views

Is this a Borel Measurable set in $[0,1)^2$?

Published on 14 Apr 2026 - 4:48

score 45 · Answer 10 · 2026-04-16 07:41:55

45

Views

Valid Proof on Boundedness for $f $and $f'$?

Published on 16 Apr 2026 - 7:41

score 88 · Answer 11 · 2026-04-16 20:47:50

88

Views

Determine that the function $f(x)=\dfrac{x^2+x-2}{x-1}$ is continous in $x_0=0$; $x_0\in \mathbb{R}$

Published on 16 Apr 2026 - 20:47

score 39 · Answer 12 · 2026-04-15 11:47:21

39

Views

Given $\sum^\infty_{k=1}\frac{(-1)^{k+1}}{\sqrt{k}}$ converges:

Published on 15 Apr 2026 - 11:47

score 34 · Answer 13 · 2026-04-16 00:31:58

34

Views

Assume $X,Y \subset \Bbb R$ and both have the Bolzano-Weierstrass Property. Prove that $X \cup Y$ has the Bolzano-Weierstrass Property.

Published on 16 Apr 2026 - 0:31

score 130 · Answer 14 · 2026-04-16 22:17:27

130

Views

If both $\Phi, \neg\phi$ and $\Phi, \psi$ are inconsistent, then $\Phi \vdash \neg(\phi \to \psi)$.

Published on 16 Apr 2026 - 22:17

score 61 · Answer 15 · 2026-04-13 00:58:45

61

Views

Describe the set of complex numbers $z$ such that $|z-i| = 2|z+i|$

Published on 13 Apr 2026 - 0:58

List Question

Dimension of vector space of matrices simltaneously diagonalizable with A.

Prove that [0,1] is connected.

Constructing another algebraic continuum via Eudoxus?

Determine that the function $f(x)=\sqrt{x^2-x-6} \text{ in } x_0=3$ is continous with the $\varepsilon$-$\delta$-definition of limit/criterion

What's the error in my proof of the statement: The product of two irrational numbers is irrational?

Let us have $2n+1$ intervals on the real line

Derived, boundary and interior of $[0,1] \cap \mathbb{Q}$

Is this proof on the Sylow 5-subgroups of G 100% correct?

Is this a Borel Measurable set in $[0,1)^2$?

Valid Proof on Boundedness for $f $and $f'$?

Determine that the function $f(x)=\dfrac{x^2+x-2}{x-1}$ is continous in $x_0=0$; $x_0\in \mathbb{R}$

Given $\sum^\infty_{k=1}\frac{(-1)^{k+1}}{\sqrt{k}}$ converges:

Assume $X,Y \subset \Bbb R$ and both have the Bolzano-Weierstrass Property. Prove that $X \cup Y$ has the Bolzano-Weierstrass Property.

If both $\Phi, \neg\phi$ and $\Phi, \psi$ are inconsistent, then $\Phi \vdash \neg(\phi \to \psi)$.

Describe the set of complex numbers $z$ such that $|z-i| = 2|z+i|$

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