List questions from relations

Published on 29 Mar 2019 - 18:59

42

Views

Error in my proof that $f \circ f^{-1} \subseteq I_B$

Published on 30 Mar 2019 - 20:40

45

Views

What is this notation $( \mathbb{N},|)$

Published on 31 Mar 2019 - 17:37

38

Views

How single elements belong to partition though they can't satisfy equivalence relation?

Published on 25 Mar 2026 - 17:37

41

Views

Matrices- Is this relationship transitive?

Published on 01 Apr 2019 - 20:49

475

Views

Show that the product of nonzero elements of $\mathbb Z_p$ ($p$ prime) is nonzero.

Published on 02 Apr 2019 - 21:48

86

Views

How do i approach finding the number of equivalence classes of a relation?

Published on 04 Apr 2019 - 4:57

51

Views

If $a \mid c$ and $b \mid c$ where $a, b, c \in \mathbb{N}$, under what conditions does it follow that $a \mid b$?

Published on 04 Apr 2019 - 9:06

49

Views

For any $f:A\to A$ and any relation $R$ on $A$, define $S$ on $A$ by $aSb$ iff $(f(a),(f(b))\in R$. Does $S$ reflexive or symmetric imply it for $R$?

Published on 04 Apr 2019 - 18:58

31

Views

Getting the amount of elements of an equivalence class of a set

Published on 04 Apr 2019 - 19:20

111

Views

Equivalence relation for $X \sim Y \iff X \cap T = Y \cap T$

Published on 06 Apr 2019 - 17:48

408

Views

Define a Relation R on the set of real numbers as follows:

Published on 06 Apr 2019 - 22:23

384

Views

Is this relation on the set ${1,2,3,4}$ transitive?

Published on 07 Apr 2019 - 0:29

68

Views

Determining whether a relation is an equivalence relation

Published on 07 Apr 2019 - 3:42

208

Views

Understanding transitive relations on set $\{0,1,2,3\}$

Published on 07 Apr 2019 - 14:47

List Question

How l can draw Hasse diagram

Error in my proof that $f \circ f^{-1} \subseteq I_B$

What is this notation $( \mathbb{N},|)$

How single elements belong to partition though they can't satisfy equivalence relation?

Matrices- Is this relationship transitive?

Show that the product of nonzero elements of $\mathbb Z_p$ ($p$ prime) is nonzero.

How do i approach finding the number of equivalence classes of a relation?

If $a \mid c$ and $b \mid c$ where $a, b, c \in \mathbb{N}$, under what conditions does it follow that $a \mid b$?

For any $f:A\to A$ and any relation $R$ on $A$, define $S$ on $A$ by $aSb$ iff $(f(a),(f(b))\in R$. Does $S$ reflexive or symmetric imply it for $R$?

Getting the amount of elements of an equivalence class of a set

Equivalence relation for $X \sim Y \iff X \cap T = Y \cap T$

Define a Relation R on the set of real numbers as follows:

Is this relation on the set ${1,2,3,4}$ transitive?

Determining whether a relation is an equivalence relation

Understanding transitive relations on set $\{0,1,2,3\}$

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