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Re:A regular expression to check for prime numbers by yard2010 on Wednesday June 21, 2023 @08:09AM (#36417436)
Fun fact about the pumping lemma - my best friend's grandparent worked on it (Eli Shamir). When we were taught it during my bsc the TA who knew he was the grandson of one of the inventors, asked during the lecture where he was, if he could say something about his grandfather, and it turns out he played hockey from the class to work on something else, embarrassing!

The pumping lemma is a great milestone in this field, so simple, yet so powerful.

Re:A regular expression to check for prime numbers by remram on Wednesday June 21, 2023 @09:06AM (#36417957)
> he played hockey from the class to work on something else

Sorry I can't parse that

Re:A regular expression to check for prime numbers by thedailymail on Wednesday June 21, 2023 @09:09AM (#36417989)
I think hockey is supposed to be hooky.
Re:A regular expression to check for prime numbers by remram on Wednesday June 21, 2023 @09:34AM (#36418255)
As in, the grandson wasn't attending when the TA asked him the question. I see.
Re:A regular expression to check for prime numbers by jappgar on Wednesday June 21, 2023 @09:10AM (#36418001)
Pretty sure they meant "playing hooky" :)
Re:A regular expression to check for prime numbers by dgfitz on Wednesday June 21, 2023 @09:10AM (#36417991)
Did you mean "played hooky" instead of "played hockey" by chance? :)
Re:A regular expression to check for prime numbers by aleph_minus_one on Wednesday June 21, 2023 @10:19AM (#36418779)
> The TA [...] asked during the lecture where he was, if he could say something about his grandfather, it turns out he played [hooky] from the class to work on something else, embarrassing!

If the "working on something else" means "working on some hard research problem", this is not embarrassing, but stylish. :-)