Given the language L = {a,b}"{bb}{a,b}"= (a|b)¨bb(a|b)" = E'bb>" %3D %3D %3D Which of the following strings belongs to L? Select one: 1.be L 2. bbabba e L 3. abab e L 4. bab e L

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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theory of computation

Given the language L = {a,b}*{bb}{a,b}* = (a|b)'bb(a|b)" = E"bbE"
%3D
%3D
Which of the following strings belongs to L?
Select one:
1.6eL
2. bbabba e L
3. abab e L
4. bab e L
Let E = {a, b, ^, v,¬,(,)}, and suppose L is the set of all
strings that represent the logical (boolean) tautology, which
of the following is correct?
Select one:
1. The string a ab is in L.
2. The string (a vbv(¬an -b)) is in L.
3. The string a vb is in L.
4. The string (a v b) is in L.
Languages can be finite such as L= {a" | n> 0} or infinite such
L = {a, aba, bba}
%3D
Select one:
O True
O False
Let L1 = {bb} and L2 = {ɛ, bb, bbbb} over b, then e,
zero, is an element of L, and L2"
with length
%3D
Select one:
True
CI Farde
Taking into consideration the operations of the natural numbers (N), we can use one
of the following definitions to express the multiplication operation named ("Mul") in
terms of the successor S function where x, y are the inputs to produce single output
in N:
Select one:
1. Mul(x.Sty)) = S(Add(x.y))
2. Mul(x.y) = Add(x.0)
3. Mul(x.Sty)) = Add(x.Mul(x.y))
4. Add(x.0)=Mul(S(x).S(y))
Transcribed Image Text:Given the language L = {a,b}*{bb}{a,b}* = (a|b)'bb(a|b)" = E"bbE" %3D %3D Which of the following strings belongs to L? Select one: 1.6eL 2. bbabba e L 3. abab e L 4. bab e L Let E = {a, b, ^, v,¬,(,)}, and suppose L is the set of all strings that represent the logical (boolean) tautology, which of the following is correct? Select one: 1. The string a ab is in L. 2. The string (a vbv(¬an -b)) is in L. 3. The string a vb is in L. 4. The string (a v b) is in L. Languages can be finite such as L= {a" | n> 0} or infinite such L = {a, aba, bba} %3D Select one: O True O False Let L1 = {bb} and L2 = {ɛ, bb, bbbb} over b, then e, zero, is an element of L, and L2" with length %3D Select one: True CI Farde Taking into consideration the operations of the natural numbers (N), we can use one of the following definitions to express the multiplication operation named ("Mul") in terms of the successor S function where x, y are the inputs to produce single output in N: Select one: 1. Mul(x.Sty)) = S(Add(x.y)) 2. Mul(x.y) = Add(x.0) 3. Mul(x.Sty)) = Add(x.Mul(x.y)) 4. Add(x.0)=Mul(S(x).S(y))
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