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matrenka [14]
3 years ago
13

Consider the language S*, where S = {a ab ba}.

Computers and Technology
1 answer:
Nezavi [6.7K]3 years ago
6 0

Answer:

Check Explanation

Explanation:

A) the string (abbba) is not a word in this language because in this language, each b must preceded or followed by an a. Three consecutive b's are just not possible.

B) All the words with 3 letters in this language

aaa

aab

aba

baa

C) 5 words with four letters from this language. I'll write as many as possible to make things as easy as possible.

aaaa

aaab

aaba

baab

baba

baaa

abaa

abab

abba

D) This is the language of words without bbb, with every bb preceded and followed by an a (that is, no word can start or end wilth bb). All non-empty strings contain at least one a (so b and bb together are not allowed!).

Hope this Helps!!!

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