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Questions about finite automata, an elementary automaton model with finite memory. It is equivalent to regular languages and the basis for many more complex models.
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A regular language derived from another
This is similar to a previous question I asked, but doesn't seem aminable to the same technique. Given a regular language $A$, show the following language is regular:
$$
\{x|\exists y \; |y| = 2^{|x|} …
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Regularity of a language constructed from a know regular language
I'm working through so textbook questions on regular languages, and came across a problem that amounts to showing the following language is regular, given that $A$ is a regular language:
$$
\{x|\exist …