Top "Pumping-lemma" questions

A lemma mostly used to prove that a language is not regular/context-free.

What is the Pumping Lemma in Layman's terms?

I saw this question, and was curious as to what the pumping lemma was (Wikipedia didn't help much). I understand …

theory proof pumping-lemma
Why L={wxw^R| w, x belongs to {a,b}^+ } is a regular language

Using pumping lemma, we can easily prove that the language L1 = {WcW^R|W ∈ {a,b}*} is not a regular …

automation regular-language dfa nfa pumping-lemma
What exactly is the 'pumping length' in the Pumping lemma?

I'm trying to understand what is this 'magical' number 'n' that is used in every application of the Pumping lemma. …

automata pumping-lemma
Are {a^n | n >= 0} and {a^p | p = prime number} not regular?

In a CS course, I have the following examples: {a^n | n >= 0} and {a^p | p = prime number} Are …

computer-science regular-language pumping-lemma