22:54 <razzy> uhm, how do i destructively delete from list (delete) is close, but (delete B A) do not delete B from A destructively

22:55 <razzy> i meant delete from list*.*

22:56 <freemint> I do not understand your question

22:57 <freemint> razzy: can you reformulate?

22:59 <freemint> (setq R (range 1 10))

22:59 <freemint> (delete '3 R) -> (1 2 4 5 6 7 8 9 10)

22:59 <razzy> i want to delete part of A list. that part is in B. (delete B A) returns

22:59 <freemint> (= R (range 1 10)) -> T

23:00 <razzy> yes

23:00 <freemint> What is a part of list?

23:00 <freemint> What do you mean by part?

23:01 <razzy> you are right. but i want destructively save R

23:01 <freemint> (setq R (delete B R))

23:02 <freemint> ?

23:02 <freemint> You are very unclear

23:02 <razzy> that solves it, propably

23:02 <razzy> i am sorry

23:03 <freemint> As long as your improve it is fine.

23:03 <freemint> Still what do you mean by a part of a list?

23:03 <freemint> "part" is not picolisp terminology

23:04 <razzy> i hope it does not mess up function return value, will try

23:05 <freemint> razzy please explain what you mean by part?

23:05 <razzy> subset of list

23:05 <freemint> is (1 3) is part of ( 3 2 1) ?

23:06 <freemint> (sets normally thought of as "unordered")

23:07 <razzy> (1 3) is not for (delete) function context

23:07 <razzy> imho

23:07 <freemint> is ( 3 2 1) a sublist of (3 5 2 1)?

23:08 <razzy> imho no for (delete) function context.

23:09 <razzy> (3 1) is subset of (1 2 (3 1) 4)

23:09 <freemint> razzy when you invent terms (which is a fine practice in some circumstances) do not make implicit somewhere because that only confuses you and us.

23:10 <freemint> razzy: subset is a reserved term from mathematics. lets find a better term

23:10 <razzy> i will go back to coding

23:10 <razzy> ok, now i get you

23:11 <freemint> we are not just some oracles which are willing to guess what you mean

23:11 <freemint> razzy if you want our help you got to make it easy for us to help you. we sometimes get frustrated over you.

23:12 <razzy> will try next time

23:18 <freemint> razzy you invented a new term (which might be a bad term but i think it is something we do not have a term for yet or you really need to learn the term)

23:23 <freemint> razzy great