Maybe we should just use the term “function call” in docs

there isn’t, but question about your use case: is the lazy field value derived from the other fields?

I have a question (maybe silly) about stream. #lang racket (require racket/stream) (define ones (stream-cons 1 ones)) (stream-take ones 10) It complained > Welcome to DrRacket, version 6.12 [3m]. > Language: racket, with debugging; memory limit: 2048 MB. > . stream-take: unbound identifier in module in: stream-take > > See the documentation https://docs.racket-lang.org/reference/streams.html#%28def._%28%28lib._racket%2Fstream..rkt%29._stream-take%29%29, it has this procedure, right?

@chansey97 you are using an old version of Racket. Upgrade it and stream-take will be available to you.

FWIW: stream-take was added in https://github.com/racket/racket/commit/f9e6a8b61b2be24232a0499fa30425d37b9580b1 on Aug 27, 2018

Racket 6.12 that you use was released on January 2018

Probably there should be a @history note in the documentation

@sorawee OK Thanks.

The lazy field is not dependent on other fields.

Is there a standard library function for unioning a list of sets? Or should I just go ahead and fold?

hmm I suppose I could do (apply set-union (list s0 s1 s2))

@joshibharathiramana I would just use (apply set-union ...) like you mentioned.