Question

Is $T = \{ ((A,B), A \times B) : A, B \in P(X) \}$ a function?

score 63 · Answer 1 · 2026-04-15 03:21:06

63

Views

Is $T = \{ ((A,B), A \times B) : A, B \in P(X) \}$ a function?

Published on 15 Apr 2026 - 3:21

score 176 · Answer 2 · 2026-04-16 12:05:55

176

Views

Find domain and range of relation

Published on 16 Apr 2026 - 12:05

score 3.1k · Answer 3 · 2026-04-15 02:33:55

3.1k

Views

Prove/disprove that if R and S are transitive then R union S is transitive

Published on 15 Apr 2026 - 2:33

score 2k · Answer 4 · 2026-04-16 14:42:16

2k

Views

What are domain and codomain of the relation $x^2+y^2=1$

Published on 16 Apr 2026 - 14:42

score 177 · Answer 5 · 2026-04-15 13:09:59

177

Views

How to define an injective function from a set of sets of length $n$ to a set of sequences of length $n$?

Published on 15 Apr 2026 - 13:09

score 124 · Answer 6 · 2026-04-11 02:34:55

124

Views

If $R_1$ and $R_2$ are symmetric then is $R_1 - R_2$ are symmetric

Published on 11 Apr 2026 - 2:34

score 3.7k · Answer 7 · 2026-04-15 23:03:27

3.7k

Views

$x-y> 1$. How is this relation neither symmetric nor anti symmetric?

Published on 15 Apr 2026 - 23:03

score 37 · Answer 8 · 2026-03-25 11:12:17

37

Views

Equivalence Relation questions about transitivity

Published on 25 Mar 2026 - 11:12

score 148 · Answer 9 · 2026-04-11 17:12:56

148

Views

How do we show a total ordering using the < symbol.

Published on 11 Apr 2026 - 17:12

score 57 · Answer 10 · 2026-04-11 21:14:00

57

Views

Partial Order Proof (Discrete Math)

Published on 11 Apr 2026 - 21:14

score 462 · Answer 11 · 2026-03-25 11:12:19

462

Views

Devising an equivalence relation with exactly two (or three) equivalence classes

Published on 25 Mar 2026 - 11:12

score 140 · Answer 12 · 2026-04-12 01:35:23

140

Views

Discrete Math Set theory/Relations counting question

Published on 12 Apr 2026 - 1:35

score 43 · Answer 13 · 2026-04-15 18:02:03

43

Views

Any relation expressed as a function $X\rightarrow\mathcal{P}(Y)$

Published on 15 Apr 2026 - 18:02

score 90 · Answer 14 · 2026-04-14 23:06:58

90

Views

On set with $n$ elements, number of equivalence relations is greater then the number of partial-order relations?

Published on 14 Apr 2026 - 23:06

score 118 · Answer 15 · 2026-04-12 03:24:14

118

Views

Is the below relation transitive?

Published on 12 Apr 2026 - 3:24

List Question

Is $T = \{ ((A,B), A \times B) : A, B \in P(X) \}$ a function?

Find domain and range of relation

Prove/disprove that if R and S are transitive then R union S is transitive

What are domain and codomain of the relation $x^2+y^2=1$

How to define an injective function from a set of sets of length $n$ to a set of sequences of length $n$?

If $R_1$ and $R_2$ are symmetric then is $R_1 - R_2$ are symmetric

$x-y> 1$. How is this relation neither symmetric nor anti symmetric?

Equivalence Relation questions about transitivity

How do we show a total ordering using the < symbol.

Partial Order Proof (Discrete Math)

Devising an equivalence relation with exactly two (or three) equivalence classes

Discrete Math Set theory/Relations counting question

Any relation expressed as a function $X\rightarrow\mathcal{P}(Y)$

On set with $n$ elements, number of equivalence relations is greater then the number of partial-order relations?

Is the below relation transitive?

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