A nice problem and proof about languages
Here we prove the following problem about languages: if L1, L2, and L3 are languages, then (L1 intersect L2) concat L3 = (L1 concat L3) intersect (L2 concat L3).
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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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