L = {w = {a,b}*||w| = 0 (mod 2) A the two middle letters are differnet}

College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter8: Sequences, Series,and Probability
Section: Chapter Questions
Problem 12T: Expand 3(x2)5+4(x2)3 by using Pascal’s Triangle to determine the coefficients.
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1. Build a context free grammar (G) into the following language:

2. Proved by induction that L = L (G)

L = {w € {a,b}*l|w| = 0 (mod 2) ^ the two middle letters are
differnet}
Transcribed Image Text:L = {w € {a,b}*l|w| = 0 (mod 2) ^ the two middle letters are differnet}
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