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- Apr 14, 2013

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Let L be the language, which has an infinite number of words, then there are words [tex]x,y,z \epsilon \Sigma ^{*}[/tex], so that [tex]|xz|\leq |\Sigma_{k}|[/tex], and each word [tex]xy^{(i)}z, i\geq0 [/tex] is in L.

How could we prove this modified Pumping Lemma?