Context-Free Grammar (CFG) Example: Union/Concat/Star
Here we show how to create a context-free grammar for the union and concatenation of any two context-free languages, as well as the star of one such language. The great part of these operations is that the grammars for them can be generated really easily, just by considering the start variables of the original two grammars (and potentially renaming variables).
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I am a professor of Computer Science, and am passionate about it. I have taught many courses at several different universities, including several sections of undergraduate and graduate theory-level classes.
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