{$a^ib^jc^k |\;j=i\;or\;j=k$} what i tried so far was first splitting it into {$a^ib^jc^k |\;j=i$} or {$a^ib^jc^k |\;j=k$} then tried to use the pumping lemma to prove it. However i couldnt get very far with it. Any help is appreciated, thanks
2026-03-25 17:26:03.1774459563
proving {$a^ib^jc^k |\;j=i\;or\;j=k$} is not regular
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Hint. Consider the intersection of your language with $a^+b^+$.