Assignment 7

Frist, when we look at this whole question, we can found it has 3parts.

The first and second parts are all asking about the definition.

However, the third question asks to prove another thing which is related to the first and second question.

So we need to use the previews answers as known condition.

It’s like from the first condition, we can get the second one and use the second one get next one… and finally get what we want.

The solution is like a Domino,and the another key point is using the definition,  ε and δ.

 

 

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