Question

Proof that composition of equivalence relations R and S is transitive if and only if R∘S=S∘R

score 1.9k · Answer 1 · 2026-04-12 21:00:41

1.9k

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Proof that composition of equivalence relations R and S is transitive if and only if R∘S=S∘R

Published on 12 Apr 2026 - 21:00

score 275 · Answer 2 · 2026-04-11 11:16:08

275

Views

Show that R is an order and draw it’s diagram

Published on 11 Apr 2026 - 11:16

score 151 · Answer 3 · 2026-04-13 03:05:15

151

Views

If a relation $R$ on $A$ is not reflexive, $R^2$ on $A$ is also not reflexive

Published on 13 Apr 2026 - 3:05

score 62 · Answer 4 · 2026-04-09 20:31:26

62

Views

Does stochastic independence imply that there is no relationship between variables?

Published on 09 Apr 2026 - 20:31

score 446 · Answer 5 · 2026-04-09 11:31:25

446

Views

Is this a total function, a partial function, or just a total, single-valued relation?

Published on 09 Apr 2026 - 11:31

score 457 · Answer 6 · 2026-04-11 11:14:56

457

Views

Is R an order? Find the minimal, maximal, least, and greatest elements

Published on 11 Apr 2026 - 11:14

score 36 · Answer 7 · 2017-10-25 07:18:03

36

Views

Find $\left\{ x \in U: X_{A}=1 \right\}$

Published on 25 Oct 2017 - 7:18

score 30 · Answer 8 · 2017-10-25 17:43:11

30

Views

Is this relation transitive? I think it is.

Published on 25 Oct 2017 - 17:43

score 123 · Answer 9 · 2017-10-26 13:54:02

123

Views

Subtractive Categories

Published on 26 Oct 2017 - 13:54

score 175 · Answer 10 · 2026-03-25 16:14:03

175

Views

Figur of Cone related to the strict, weak and lexicographic order?

Published on 25 Mar 2026 - 16:14

score 22 · Answer 11 · 2026-04-10 05:07:13

22

Views

Looking for clarification on definition of a relation

Published on 10 Apr 2026 - 5:07

score 53 · Answer 12 · 2026-04-08 07:39:45

53

Views

Why is it always the case that, given an equivalence relation R on a set X and a $x \in X$, that x is equivalent to itself?

Published on 08 Apr 2026 - 7:39

score 113 · Answer 13 · 2026-04-08 07:39:46

113

Views

For every element $x$ in a given set $A$, $x$ is an element of the corresponding equivalence class $[x]_R$ with R an equivalence relation. Why?

Published on 08 Apr 2026 - 7:39

score 521 · Answer 14 · 2026-04-12 23:04:49

521

Views

How to find the least, greatest, minimal, amd maximal elements from this matrix?

Published on 12 Apr 2026 - 23:04

score 204 · Answer 15 · 2026-04-11 12:55:45

204

Views

Take strict preference to be primitive, define weak preference and indifference in terms of strict preference

Published on 11 Apr 2026 - 12:55

List Question

Proof that composition of equivalence relations R and S is transitive if and only if R∘S=S∘R

Show that R is an order and draw it’s diagram

If a relation $R$ on $A$ is not reflexive, $R^2$ on $A$ is also not reflexive

Does stochastic independence imply that there is no relationship between variables?

Is this a total function, a partial function, or just a total, single-valued relation?

Is R an order? Find the minimal, maximal, least, and greatest elements

Find $\left\{ x \in U: X_{A}=1 \right\}$

Is this relation transitive? I think it is.

Subtractive Categories

Figur of Cone related to the strict, weak and lexicographic order?

Looking for clarification on definition of a relation

Why is it always the case that, given an equivalence relation R on a set X and a $x \in X$, that x is equivalent to itself?

For every element $x$ in a given set $A$, $x$ is an element of the corresponding equivalence class $[x]_R$ with R an equivalence relation. Why?

How to find the least, greatest, minimal, amd maximal elements from this matrix?

Take strict preference to be primitive, define weak preference and indifference in terms of strict preference

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