Question

regex for exactly n possible values which are unique

score 45 · Answer 1 · 2026-03-25 12:46:11

45

Views

regex for exactly n possible values which are unique

Published on 25 Mar 2026 - 12:46

score 66 · Answer 2 · 2023-09-26 13:19:01

66

Views

Is the Language $L = \{a^n b^m c^k d^q e^r \,|\, n, m, k, q, r \geq 0\}$ a Valid Regular Language?

Published on 26 Sep 2023 - 13:19

score 188 · Answer 3 · 2023-10-11 09:40:20

188

Views

DFA and regular expressions

Published on 11 Oct 2023 - 9:40

score 41 · Answer 4 · 2023-11-02 23:54:56

41

Views

Regular expression of a formal language with a number of a's equal to a multiple of 7 and a number of b's not equal to a multiple of 5?

Published on 02 Nov 2023 - 23:54

score 179 · Answer 5 · 2023-11-04 21:54:15

179

Views

Regular expression for binary strings containing at least one $1$ and at most two $0$'s

Published on 04 Nov 2023 - 21:54

score 51 · Answer 6 · 2023-11-09 16:43:49

51

Views

How to get words that belong to the language of this regular expression and four which do not, ((a|baa) ∗ (b|ab))∗ .

Published on 09 Nov 2023 - 16:43

score 84 · Answer 7 · 2023-11-10 06:23:56

84

Views

Regular Expression question Σ = {a, b}, what's the expression containing either ba or abb?

Published on 10 Nov 2023 - 6:23

score 78 · Answer 8 · 2024-01-12 02:34:40

78

Views

How to show that only this regular expression solves this equation

Published on 12 Jan 2024 - 2:34

score 34 · Answer 9 · 2024-02-04 07:44:25

34

Views

Transformation from DFA to regular expression

Published on 04 Feb 2024 - 7:44

score 59 · Answer 10 · 2026-03-25 10:53:07

59

Views

Is the Language $L=\{(ab)^{3n}\:|\:n\in\mathbb N\}$ regular?

Published on 25 Mar 2026 - 10:53

score 68 · Answer 11 · 2024-03-14 12:52:03

68

Views

What is the regular language for L = {w | w has even length, and starts and ends with the same symbol}?

Published on 14 Mar 2024 - 12:52

score 117 · Answer 12 · 2024-03-16 15:44:05

117

Views

Generating function for binary strings not containing $0110$ or $11010$ as a substring

Published on 16 Mar 2024 - 15:44

score 17 · Answer 13 · 2026-03-13 04:38:43

17

Views

regular expression problem $(A \cup B)^∗AB(A \cup B)^∗ \cup B^∗A^∗ = (A \cup B)^∗$

Published on 13 Mar 2026 - 4:38

score 259 · Answer 14 · 2015-01-10 15:50:04

259

Views

Why is $a^nb^n|n\geq1$ not regular and $a^nb^n|n\leq {10^{10}}$ regular?

Published on 10 Jan 2015 - 15:50

score 5.6k · Answer 15 · 2026-03-25 19:03:54

5.6k

Views

Isn't $L=\{ww|w \in \{0,1\}^*\}$ a Non Deterministic Context Free Language?

Published on 25 Mar 2026 - 19:03

List Question

regex for exactly n possible values which are unique

Is the Language $L = \{a^n b^m c^k d^q e^r \,|\, n, m, k, q, r \geq 0\}$ a Valid Regular Language?

DFA and regular expressions

Regular expression of a formal language with a number of a's equal to a multiple of 7 and a number of b's not equal to a multiple of 5?

Regular expression for binary strings containing at least one $1$ and at most two $0$'s

How to get words that belong to the language of this regular expression and four which do not, ((a|baa) ∗ (b|ab))∗ .

Regular Expression question Σ = {a, b}, what's the expression containing either ba or abb?

How to show that only this regular expression solves this equation

Transformation from DFA to regular expression

Is the Language $L=\{(ab)^{3n}\:|\:n\in\mathbb N\}$ regular?

What is the regular language for L = {w | w has even length, and starts and ends with the same symbol}?

Generating function for binary strings not containing $0110$ or $11010$ as a substring

regular expression problem $(A \cup B)^∗AB(A \cup B)^∗ \cup B^∗A^∗ = (A \cup B)^∗$

Why is $a^nb^n|n\geq1$ not regular and $a^nb^n|n\leq {10^{10}}$ regular?

Isn't $L=\{ww|w \in \{0,1\}^*\}$ a Non Deterministic Context Free Language?

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