The book that I'm reading says it is equivalent
But what about the aa string ? i produce it this way :
S\Rightarrow S_1B\Rightarrow aS_1bB\Rightarrow aaB\Rightarrow aa
But that language doesn'...
What are some good resources for practice problems on formal languages? Every textbook I've seen contains few practice problems with even fewer answers. I would like a resource that has questions with ...