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Question: let be an alphabet given two words w1 and...

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Let Σ be an alphabet. Given two words w1 and w2, a match between w1 and w2 is a word w satisfying2uIcHDwDy5asDof6LfxAAAAAElFTkSuQmCCandSIzh8mazufQfeT44s13SAVAAAAAASUVORK5CYII= for someFPoWCi3KX2irAPeaKfa6uxpdNh0aPar5YOJt95Xf and lAAAAAElFTkSuQmCC. Given two languages L1 and L2, we use L1L2 to denote the set of matches between w1 and w2 for all w1L1,w2L2. Prove that if L1 and L2 are regular languages, then so is L1L2.

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