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Pumping Lemma For Context-free Languages




The pumping lemma for context-free languages cannot be used to prove that any arbitrary non- Context-free Language is not Context-free . In some cases the more generalized Ogden's Lemma must be used.


FORMAL STATEMENT


  # If String W ∈ L Where W > P, It Follows That W uvxyz, where vxy ≤ p