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Module14Worksheet

# Module14Worksheet - Module 14 Worksheet In class Questions...

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Module 14 Worksheet In class Questions 1) (S4) Prove that 2 is an integer given the definition of integers on this slide. 2) (S4) Is there another proof that 2 is an integer using these rules? Why or why not? 3) (S6) Prove that {a,b}* is a regular language. 4) (S8) Is (aa + ab + ba + bb)* the set of even length strings? Why or why not? 5) (S11) What “rule” is violated by the following incorrect regular expressions? a++b a*b+ (a+b )(a+b) 6) (S12) Consider the string “10+11” How many characters does it contain? What is L(10+11)? If we interpret this string as the addition of two binary numbers, what is 10+11?

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