regexmathpumping-lemma

Finding errors in pumping lemma conditions


In my exam, i was supposed to write all pumping lemma conditions. that exactly what i did :

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a friend told me that there is some errors but i can't find them... Can some one help please ? what are the errors & why ?


Solution

  • If I remember correctly, the conditions need to be as follows:

    So y must not be empty and y can be repeated zero or more times.