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Recent questions tagged context-sensitive
3
votes
2
answers
1
TOC - Self Doubt
Can anyone explain $\overline{ww}$ is $CFL$ or $CSL$ And if $CFL$ can you write the equivalent $CFG$ for this ?
Jiten008
asked
in
Theory of Computation
Oct 24, 2023
by
Jiten008
362
views
pushdown-automata
theory-of-computation
self-doubt
regular-language
context-free-language
context-sensitive
turing-machine
closure-property
context-free-grammar
2
votes
0
answers
2
Is it CFL or CSL?
Is {$a^nb^nc^n$ | $n>=0$} CSL? After comparing both a and b, stack would be empty. So it can’t be CFL. So it is CSL or recursive. And does this language require more than 1 stack? Please tell how would check for the grammer of this language even if it is in CSL. Thank you
h4kr
asked
in
Theory of Computation
Dec 23, 2022
by
h4kr
281
views
theory-of-computation
context-free-language
context-sensitive
pushdown-automata
3
votes
2
answers
3
Is it also CSL?
Is the following Language, L = {xxxx | x ∈ {0, 1}*} CSL or not? I saw a explanation say that it’s REC, but it didn’t say anything about it not being CSL and I used to think strings like {xx | x ∈ {0, 1}*} are CSL where the same strings keep repeating [like x here]. So is it CSL and please do also tell is there a rule to figure that out?
h4kr
asked
in
Theory of Computation
Dec 18, 2022
by
h4kr
768
views
theory-of-computation
context-sensitive
recursive-and-recursively-enumerable-languages
0
votes
2
answers
4
Theory of Computation | Automata
L= {$a^nb^nc^nd^n; n\geq 0$} Given Language is a CSL TRUE FALSE
Souvik33
asked
in
Theory of Computation
Dec 12, 2022
by
Souvik33
681
views
theory-of-computation
context-sensitive
2
votes
1
answer
5
ace academy ToC
I don’t get the explanation, How do you categorize grammer on the basis of production?
h4kr
asked
in
Theory of Computation
Dec 4, 2022
by
h4kr
561
views
theory-of-computation
context-sensitive
grammar
ace-test-series
0
votes
1
answer
6
Context Sensitive Grammars
Is the following CSG for a^n b^n c^n correct? S->aSbC|abc Cb->bC C->c If not please explain why?
preethi01
asked
in
Theory of Computation
Jan 29, 2022
by
preethi01
1.7k
views
theory-of-computation
context-sensitive
0
votes
1
answer
7
Closure Properties of Languages
let L = “CFL but not REGULAR”, Can we get complement of L as CFL? Unlike in the case of Recursively Enumerable(RE) language where if L = “RE but not RECURSIVE”, its complement can never be RE.
UltraRadiantX
asked
in
Theory of Computation
Oct 9, 2021
by
UltraRadiantX
470
views
theory-of-computation
context-free-language
context-sensitive
0
votes
2
answers
8
UGC NET CSE | June 2005 | Part 2 | Question: 32
Which of the following is the most general phase – structured grammar ? Regular Context – Sensitive Context free None of these
go_editor
asked
in
Compiler Design
Mar 26, 2020
by
go_editor
334
views
ugcnetcse-june2005-paper2
compiler-design
grammar
context-sensitive
0
votes
1
answer
9
Test Series
If $L_1$ is DCFL and $L_2$ is context free language. Consider the below given statements Which is correct between these and why ? (S1 is correct.. but why ??) . I couldn’t understand the explanation given in the solution..
Hardik Maheshwari
asked
in
Theory of Computation
Jan 14, 2019
by
Hardik Maheshwari
1.3k
views
context-free-language
context-sensitive
context
deterministic-context-free-grammars
theory-of-computation
2
votes
1
answer
10
TOC Which is(are) regular? Please explain 1 and 4.
Which of the following languages is regular? L = { bba (ba)* a^n-1 | n> 0 } L = {a^nb^n | n < 1000 } L = {a^nb^k | n is odd or k is even } L = {wxw^R | w,x ∈(0+1)* } 1, 3 and 4 2, 3, 4 2, 3 1, 2, 3, 4
rahuljai
asked
in
Theory of Computation
Dec 13, 2018
by
rahuljai
1.1k
views
context-sensitive
regular-language
context-free-language
theory-of-computation
regular-expression
0
votes
0
answers
11
Ace Book
The complement of the language L containing an equal number of a's , b's and c's is a)regular b)context free c)context sensitive but not context free d)recursive and not a CFL
abhishek1995_cse
asked
in
Theory of Computation
Oct 21, 2018
by
abhishek1995_cse
535
views
context-free-language
pushdown-automata
context-sensitive
0
votes
0
answers
12
Doubt in Grammar
What is the difference between phase structured grammar and phrase structured grammar?
goluabhinan
asked
in
Theory of Computation
Sep 16, 2018
by
goluabhinan
204
views
theory-of-computation
grammar
context-sensitive
compiler-design
0
votes
0
answers
13
Doubt in Grammar
Below is the grammar then find the language generated by given grammar S → ABC AB → aAx |bAy | ε xb → bx ya → ay C → ε yb → by xC → BaC aB → Ba yC → BbC bB → Bb xa → ax Correct option : (a) L = {w|w ∈ (a, b)∗, and xa(w) = xb(w)} (b) L = {w|w ⊆ (a, b)+, and w is a palandrom string (c) L = {w|w ⊆ (a, b)∗, and w = xx, where X = (a, b)∗} (d) None of the above
goluabhinan
asked
in
Theory of Computation
Sep 10, 2018
by
goluabhinan
285
views
theory-of-computation
grammar
context-sensitive
0
votes
2
answers
14
UGC NET CSE | July 2018 | Part 2 | Question: 37
Context sensitive language can be recognized by a Finite state machine Deterministic finite automata Non-deterministic finite automata Linear bounded automata
Pooja Khatri
asked
in
Theory of Computation
Jul 13, 2018
by
Pooja Khatri
1.9k
views
ugcnetcse-july2018-paper2
theory-of-computation
context-sensitive
0
votes
2
answers
15
context sensitive grammer
it is given that in csg if @-># then length of @ should be less or equal to # then how aaB->c is a csg???
Ravi prakash pandey
asked
in
Theory of Computation
Apr 7, 2018
by
Ravi prakash pandey
602
views
theory-of-computation
context-sensitive
1
vote
2
answers
16
Regular and CFL
LC may be CFL LC cannot be CFL LC may be regular LC may or may not be CFL
Parshu gate
asked
in
Theory of Computation
Dec 10, 2017
by
Parshu gate
755
views
theory-of-computation
context-free-language
context-sensitive
2
votes
1
answer
17
Doubt in CSL and CFL
$a) \{\ 0^i\ 1^j\ 2^k\ \ | where\ i\ \neq j\ or\ j\ \neq k\ \}$ $b) \{\ 0^i\ 1^j\ 2^k\ \ | where\ i\ \neq j\ and\ j\ \neq k\ \}$ a) CFL(union of two OR-ed comparisons ) b) CSL( Double comaprison ) Am I correct?
Tuhin Dutta
asked
in
Theory of Computation
Dec 4, 2017
by
Tuhin Dutta
690
views
theory-of-computation
context-sensitive
context-free-language
0
votes
0
answers
18
General syllabus doubt
Hello, The gate 2018 syllabus explicitly mentions regular languages, context free languages and turing machines. It does not say anything about context sensitive languages and linear bounded automata..How much of these topics should i study?..definitions? closure properties?
Tridhara Chakrabarti
asked
in
Study Resources
Nov 23, 2017
by
Tridhara Chakrabarti
562
views
context-sensitive
theory-of-computation
syllabus
gate2018-preparation
grammar
5
votes
1
answer
19
Regular and CFL
Let L={ai bj ck ┤|if j is odd then i=k} where i,j,k>0. Which of the following option is true about L? L is CSL but not CFL L is CFL but not DCFL L is regular L is DCFL but not regular
Parshu gate
asked
in
Theory of Computation
Nov 16, 2017
by
Parshu gate
693
views
theory-of-computation
regular-language
context-sensitive
context-free-language
0
votes
0
answers
20
Peter Linz Edition 4 Example 10.5 (Page No. 272)
Find a linear bounded automata that accepts the language 1. L={a^(n!) : n>=0} 2. L ={a^n : n is perfect square} Please explain.
Nikita888
asked
in
Theory of Computation
Nov 16, 2017
by
Nikita888
1.6k
views
theory-of-computation
context-sensitive
peter-linz
peter-linz-edition4
0
votes
1
answer
21
Language which is not a CSL but can be accepted by TM
Can anyone give me an example of a language which is not a CSL but can be accepted using a Halting TM?
Xylene
asked
in
Theory of Computation
Jun 15, 2017
by
Xylene
1.5k
views
theory-of-computation
context-free-language
pushdown-automata
context-sensitive
recursive-and-recursively-enumerable-languages
turing-machine
2
votes
3
answers
22
CSL and Regular language
if L1 = { anbncn | n>= 0 } and L2 = { anbmck | k,n,m>=0} L1 is CSL and L2 is regular. Now L3 = L1.(L2)*. Is L3 is regualar or CSL?
AnilGoudar
asked
in
Theory of Computation
May 10, 2017
by
AnilGoudar
3.2k
views
theory-of-computation
context-sensitive
regular-language
7
votes
3
answers
23
ISRO2017-11
Given the following statements S1 : Every context-sensitive language $L$ is recursive S2 : There exists a recursive language that is not context-sensitive Which statements are true? Only S1 is correct Only S2 is correct Both S1 and S2 are not correct Both S1 and S2 are correct
sh!va
asked
in
Theory of Computation
May 7, 2017
by
sh!va
5.9k
views
isro2017
theory-of-computation
context-sensitive
4
votes
0
answers
24
Are CSL, RE, Recursive languages closed under Subset operation?
Regular languages are not closed under Subset - Example anbn is subset of a*b* which is non-regular. DCFL/CFL languages are not closed under Subset - Example anbncn is subset of anbnc* which is non-cfl. Are the languages CSL,Recursive or Recursively Enumerable lanuages closed under Subset operation?
yg92
asked
in
Theory of Computation
Feb 8, 2017
by
yg92
2.7k
views
theory-of-computation
recursive-and-recursively-enumerable-languages
context-sensitive
context-sensitive-languages
closure-property
0
votes
1
answer
25
geeks mock 2017 #56
Which of the following statements is correct about context sensitive grammar? I) In a context sensitive grammar, ε can't be the right hand side of any production II) In a context sensitive grammar, number of grammar symbols on the left hand side of a ... non-terminals on the right hand side Isn't (II) (non contracting grammar is also CSL) and (IV) both are correct
Pankaj Joshi
asked
in
Compiler Design
Jan 14, 2017
by
Pankaj Joshi
3.0k
views
geeksforgeeks-test-series
compiler-design
context-sensitive
0
votes
0
answers
26
Virtual Gate Test Series: Theory Of Computation - Context Sensitive Grammar
How can L(G) be regular? If we derive bSb --> bAcAb, now we have Ab-->b but we do not have the production bA since G is all production except last. So there is no production for A or bA. How can we go further?
Purple
asked
in
Theory of Computation
Jan 12, 2017
by
Purple
414
views
theory-of-computation
context-sensitive
grammar
virtual-gate-test-series
10
votes
2
answers
27
Which of these languages are regular, CFL and CSL?
Consider the following statements: $L_1=\left\{\text{wxw$^R$|w$\in$(a,b)$^*$, x$\in$c }\right\}$ $L_2=\left\{\text{wy|w, y $\in$ (a,b)$^*$}\right\} $ ... free, $L_2$ and $L_3$ are regular and $L_4$ is context sensitive languages $L_1, L_4$ are context free, $L_2$ and $L_3$ is context sensitive languages
Mahesha999
asked
in
Theory of Computation
Dec 25, 2016
by
Mahesha999
2.9k
views
theory-of-computation
context-free-language
context-sensitive
3
votes
2
answers
28
How can I tell if these languages are context sensitive
How can I tell if languages $L_1$ and $L_2$ are Context Sensitive or not?
Mahesha999
asked
in
Theory of Computation
Dec 25, 2016
by
Mahesha999
953
views
theory-of-computation
context-sensitive
1
vote
1
answer
29
context sensitive language
L = { ${\epsilon }$ } is a a) regular b) CFL c) CSL d) recursive language
Neal Caffery
asked
in
Theory of Computation
Dec 2, 2016
by
Neal Caffery
1.1k
views
theory-of-computation
identify-class-language
context-sensitive
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