Question

On the size of a set of functions such that $f(i)\ne f(i+1)$ for every $i$ (and similar conditions)

score 91 · Answer 1 · 2026-04-05 18:29:04

91

Views

On the size of a set of functions such that $f(i)\ne f(i+1)$ for every $i$ (and similar conditions)

Published on 05 Apr 2026 - 18:29

score 263 · Answer 2 · 2026-03-28 13:22:11

263

Views

proving antisymmetry of partition refinement

Published on 28 Mar 2026 - 13:22

score 57 · Answer 3 · 2026-03-30 12:43:43

57

Views

Prove the following $R \subseteq A\times B$ and $S\subseteq B\times C \rightarrow $ $ S \circ R $ is symetric

Published on 30 Mar 2026 - 12:43

score 339 · Answer 4 · 2026-03-27 01:00:09

339

Views

Is there a name for this property of a binary relation? $\forall x\forall y(x\mathsf{R}y\to\exists z(x\mathsf{R}z\land y\mathsf{R}z)))$

Published on 27 Mar 2026 - 1:00

score 28 · Answer 5 · 2026-04-11 07:22:42

28

Views

Relations & modular artithmetic

Published on 11 Apr 2026 - 7:22

score 201 · Answer 6 · 2014-01-25 19:55:16

201

Views

Class Transitivity Proof

Published on 25 Jan 2014 - 19:55

score 538 · Answer 7 · 2026-04-10 19:21:34

538

Views

Can a relation be transitive when it is not reflexive?

Published on 10 Apr 2026 - 19:21

score 74 · Answer 8 · 2026-04-07 10:04:18

74

Views

Show that f is a symmetric relation on A

Published on 07 Apr 2026 - 10:04

score 144 · Answer 9 · 2026-04-08 19:09:38

144

Views

Question about sets of well-orders and isomorphisms between well-orders

Published on 08 Apr 2026 - 19:09

score 14.8k · Answer 10 · 2014-01-29 20:49:44

14.8k

Views

Prove that between every two rational numbers a/b and c/d that there is a rational number and there are an infinite number of rational numbers

Published on 29 Jan 2014 - 20:49

score 3.6k · Answer 11 · 2026-04-03 14:22:18

3.6k

Views

Count number of binary relations between sets

Published on 03 Apr 2026 - 14:22

score 70 · Answer 12 · 2014-02-01 13:57:28

70

Views

Simple set theory - Show a set is finite

Published on 01 Feb 2014 - 13:57

score 124 · Answer 13 · 2014-02-01 19:01:43

124

Views

Set Theory - Given 2 sets, are they order-isomorphic

Published on 01 Feb 2014 - 19:01

score 565 · Answer 14 · 2026-04-11 05:45:46

565

Views

Transitive & symmetric relation; why is this wrong?

Published on 11 Apr 2026 - 5:45

score 467 · Answer 15 · 2026-04-07 11:35:44

467

Views

Is a relation$ R=\{(a,a):a\in I\}$ said to be reflexive, symmetric and transitive?

Published on 07 Apr 2026 - 11:35

List Question

On the size of a set of functions such that $f(i)\ne f(i+1)$ for every $i$ (and similar conditions)

proving antisymmetry of partition refinement

Prove the following $R \subseteq A\times B$ and $S\subseteq B\times C \rightarrow $ $ S \circ R $ is symetric

Is there a name for this property of a binary relation? $\forall x\forall y(x\mathsf{R}y\to\exists z(x\mathsf{R}z\land y\mathsf{R}z)))$

Relations & modular artithmetic

Class Transitivity Proof

Can a relation be transitive when it is not reflexive?

Show that f is a symmetric relation on A

Question about sets of well-orders and isomorphisms between well-orders

Prove that between every two rational numbers a/b and c/d that there is a rational number and there are an infinite number of rational numbers

Count number of binary relations between sets

Simple set theory - Show a set is finite

Set Theory - Given 2 sets, are they order-isomorphic

Transitive & symmetric relation; why is this wrong?

Is a relation$ R=\{(a,a):a\in I\}$ said to be reflexive, symmetric and transitive?

Trending Questions

Popular # Hahtags

Popular Questions