For this sense the language of a is in the set of all, Ask an Expert

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As a basic introduction to decidability, I have been asked to think about these two questions and would like your help:

E^* = Sigma Star
e = epsilon

1.) Let ALL_DFA = { is DFA and L(A) = E^*} Show that ALL_DFA is decidable.

For this, sense the language of A is in the set of all languages, would showing this just involve making a DFA of one state that accepts everything? I am not sure how to show this.

2.) Let A_eCFG = { if CFG that generates e}. Show that A_eCFG is decidable.

For this, isn't there a theorem that says that ALL CFG's are decidable?

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Computer Engineering, Engineering

Category:- Computer Engineering
Reference No.:- M9455820

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