Question

How can I use induction to prove the Triangle inequality?

score 505 · Answer 1 · 2026-03-28 10:56:09

505

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How can I use induction to prove the Triangle inequality?

Published on 28 Mar 2026 - 10:56

score 84 · Answer 2 · 2026-03-25 01:37:48

84

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$U=\{ p\in P_{4}\left( \mathbb{R} \right) : p''\left( 6\right) =0\}$ Find a basis for $U$

Published on 25 Mar 2026 - 1:37

score 263 · Answer 3 · 2026-03-30 13:52:55

263

Views

Vectorial form of an expression

Published on 30 Mar 2026 - 13:52

score 2.1k · Answer 4 · 2026-03-26 08:00:54

2.1k

Views

Derivative of ||Ax-b||^2 and other derivatives of matrix expressions

Published on 26 Mar 2026 - 8:00

score 416 · Answer 5 · 2026-03-26 02:56:14

416

Views

My proof that the closure of a linear subspace of a topological vector space is again linear.

Published on 26 Mar 2026 - 2:56

score 541 · Answer 6 · 2026-03-25 22:03:54

541

Views

Kernel of a surjective module morphism $f : R^2 \rightarrow R$ is a free submodule

Published on 25 Mar 2026 - 22:03

score 35 · Answer 7 · 2026-03-27 17:24:25

35

Views

Finding the equation of a line that is the intersection of two planes?

Published on 27 Mar 2026 - 17:24

score 120 · Answer 8 · 2018-09-19 06:37:43

120

Views

Union of two vector subspaces equals the vector space

Published on 19 Sep 2018 - 6:37

score 620 · Answer 9 · 2018-09-19 23:33:45

620

Views

Spanning sets and subspaces

Published on 19 Sep 2018 - 23:33

score 30 · Answer 10 · 2018-09-20 10:36:19

30

Views

Find the basis of given set $W$?

Published on 20 Sep 2018 - 10:36

score 81 · Answer 11 · 2018-09-20 11:41:21

81

Views

What kind of mathematical/algebraic structure is DateTime + TimeSpan?

Published on 20 Sep 2018 - 11:41

score 175 · Answer 12 · 2026-03-25 06:33:59

175

Views

On the "exterior derivative" for not-necessarily-differential forms

Published on 25 Mar 2026 - 6:33

score 45 · Answer 13 · 2018-09-20 16:45:25

$\dim V<\infty$, $\operatorname{char}V\ne2$ and let $w\in\operatorname{Sym}(w)$, then there exists a basis for $V$ which is orthogonal w.r.t. $w$

score 136 · Answer 14 · 2018-09-20 20:58:35

136

Views

$L:\Bbb{V} \to \Bbb{W}$ is an invertible linear mapping, prove that $\dim\Bbb{V} = \dim\Bbb{W}$?

Published on 20 Sep 2018 - 20:58

score 3.7k · Answer 15 · 2018-09-20 21:55:21

3.7k

Views

How is a vector space over C also a vector space over R?

Published on 20 Sep 2018 - 21:55

List Question

How can I use induction to prove the Triangle inequality?

$U=\{ p\in P_{4}\left( \mathbb{R} \right) : p''\left( 6\right) =0\}$ Find a basis for $U$

Vectorial form of an expression

Derivative of ||Ax-b||^2 and other derivatives of matrix expressions

My proof that the closure of a linear subspace of a topological vector space is again linear.

Kernel of a surjective module morphism $f : R^2 \rightarrow R$ is a free submodule

Finding the equation of a line that is the intersection of two planes?

Union of two vector subspaces equals the vector space

Spanning sets and subspaces

Find the basis of given set $W$?

What kind of mathematical/algebraic structure is DateTime + TimeSpan?

On the "exterior derivative" for not-necessarily-differential forms

$\dim V<\infty$, $\operatorname{char}V\ne2$ and let $w\in\operatorname{Sym}(w)$, then there exists a basis for $V$ which is orthogonal w.r.t. $w$

$L:\Bbb{V} \to \Bbb{W}$ is an invertible linear mapping, prove that $\dim\Bbb{V} = \dim\Bbb{W}$?

How is a vector space over C also a vector space over R?

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