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Recent questions tagged equivalence-class
4
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1
GO Classes Test Series 2024 | Mock GATE | Test 13 | Question: 62
As a refresher, if $R$ is an equivalence relation over a set $A$ and $x \in A$, then the equivalence class of $\boldsymbol{x}$ in $\boldsymbol{R}$, denoted $[x]_R,$ is the set $ [x]_R=\{y \in A \mid x R y\} $ Let's now introduce some ... $\mathrm{I}(\mathrm{R})=n / 2$ and $\mathrm{W}(\mathrm{R})=n / 2$
GO Classes
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GO Classes
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goclasses2024-mockgate-13
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2
Discrete math
Çșȇ ʛấẗẻ
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Algorithms
Sep 14, 2023
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Çșȇ ʛấẗẻ
79
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equivalence-class
discrete-mathematics
11
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2
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3
GATE CSE 2023 | Question: 39
Let $f: A \rightarrow B$ be an onto (or surjective) function, where $A$ and $B$ are nonempty sets. Define an equivalence relation $\sim$ on the set $A$ as \[ a_{1} \sim a_{2} \text { if } f\left(a_{1}\right)=f\left(a_{2}\right), \] ... is NOT well-defined. $F$ is an onto (or surjective) function. $F$ is a one-to-one (or injective) function. $F$ is a bijective function.
admin
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Feb 15, 2023
by
admin
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gatecse-2023
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4
votes
1
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4
GO Classes Test Series 2023 | Theory of Computation | Test 2 | Question: 10
Let $\text{L}$ be a language over an alphabet $\Sigma$. The equivalence relation $\sim_{\text{L}}$ on the set $\Sigma^{\ast}$ of finite strings over $\Sigma$ ... $1$ Only $2$ Both None
GO Classes
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Theory of Computation
Jun 22, 2022
by
GO Classes
381
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goclasses2024-toc-2-weekly-quiz
goclasses
theory-of-computation
regular-language
equivalence-class
2-marks
6
votes
1
answer
5
GO Classes Test Series 2024 | Discrete Mathematics | Test 2 | Question: 16
Let $\text{Z}$ be the set of all integers. Define a relation $\text{S}$ on $\text{Z} \times \text{Z}$ by $(w,x)\text{S}(y,z)$ if and only if $w-x = y-z.$ We know that $\text{S}$ is an equivalence relation. Which of the ... class of $(a,b)$ is disjoint from the equivalence class of $(a-2,b+2),$ for all $a,b,c,d \in \text{Z}.$
GO Classes
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Set Theory & Algebra
Apr 21, 2022
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GO Classes
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goclasses2024-dm-2-weekly-quiz
goclasses
set-theory&algebra
relations
equivalence-class
multiple-selects
2-marks
3
votes
1
answer
6
GO Classes 2023 | Weekly Quiz 7 | Question: 12
Let $\text{A, B}$ be two non-empty sets, with cardinality $3,4$ respectively. Let $\text{R}$ be a relation defined on the power set of $\text{A} \times \text{B}.$ Relation $\text{R}$ is reflexive, symmetric, transitive and antisymmetric. How many equivalence classes does relation $\text{R}$ have?
GO Classes
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Apr 14, 2022
by
GO Classes
684
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goclasses_wq7
goclasses
numerical-answers
set-theory&algebra
set-theory
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equivalence-class
2-marks
0
votes
1
answer
7
ZEAL test-series : Cardinality of relation!
I know that the number of equivalence relation is bell no. i.e 7th bell no. i.e. 877, but i am not able to find the cardinality of R! Please help!
Yashdeep2000
asked
in
Set Theory & Algebra
Mar 6, 2022
by
Yashdeep2000
668
views
equivalence-class
relations
0
votes
1
answer
8
Rosen 7e Exercise-9.5 Question no-9 page no-615
Suppose that $A$ is a nonempty set, and $f$ is a function that has $A$ as its domain. Let $R$ be the relation on $A$ consisting of all ordered pairs $(x, y)$ such that $f (x)=f (y)$ $a)$ Show that $R$ is an equivalence relation on $A$ $b)$ What are the equivalence classes of $R?$
aditi19
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in
Set Theory & Algebra
Apr 23, 2019
by
aditi19
1.3k
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kenneth-rosen
discrete-mathematics
relations
equivalence-class
0
votes
0
answers
9
finding equivalence classes $R_L$ of given languages and separating words
hello, i've just solved 2 questions among many, but i'm not sure i've got to the right result. could you check if i did it correctly(especially 2) as it's more complicated). both are over ... classes. could you help me with that please? thank you very much for your help, really hoping i did it correctly.
csenoob
asked
in
Theory of Computation
Dec 7, 2018
by
csenoob
367
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finite-automata
equivalence-class
myhill-nerode
theory-of-computation
0
votes
1
answer
10
UGC NET CSE | July 2018 | Part 2 | Question: 89
Which of the following is an equivalence relation on the set of all functions from Z to Z? $\{ f, \:g) \mid f(x) - g(x) =1 \: \forall \: x \in \: Z \}$ $\{ f, \:g) \mid f(0) = g(0) \text{ or } f(1) = g(1) \}$ $\{ f, \:g) \mid f(0) = g(1) \text{ and } f(1) = g(0) \}$ $\{ f, \:g) \mid f(x) - g(x) =k \text{ for some } k \in Z \}$
Pooja Khatri
asked
in
Discrete Mathematics
Jul 13, 2018
by
Pooja Khatri
849
views
ugcnetcse-july2018-paper2
discrete-mathematics
equivalence-class
1
vote
1
answer
11
Equivalence classes
Consider a regular language L over Σ={0,1} such that L contains every string which ends with "0". The number of equivalence classes in L is ______.
Parshu gate
asked
in
Theory of Computation
Nov 27, 2017
by
Parshu gate
1.3k
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equivalence-class
theory-of-computation
myhill-nerode
0
votes
0
answers
12
Equivalence Relation
Which of the above are true. I think only 1st one is true. But the answer given is all are true.
Shubhanshu
asked
in
Set Theory & Algebra
Nov 15, 2017
by
Shubhanshu
450
views
discrete-mathematics
relations
equivalence-class
0
votes
0
answers
13
Equivalence relation
True / false ? a. Partitions formed from congruence classes modulo $6$ ... $R_4$ creates refinement partitions with respect to the partitions of $R_3$.
dd
asked
in
Set Theory & Algebra
Dec 14, 2016
by
dd
501
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relations
equivalence-class
set-theory&algebra
0
votes
0
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14
Gate Computer Science group Fb post
Shreya Roy
asked
in
Set Theory & Algebra
Nov 28, 2016
by
Shreya Roy
611
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equivalence-class
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