I often wondered why -identity- is not included in the exports of racket/base. But which functions would we choose? (lambda (x) x) or (lambda x (apply values x)) which can simply be wrtitten as values So -values- may be the identity you are looking for. Jos
> -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Robby Findler > Sent: 23 September 2010 16:44 > To: Tim Brown > Cc: Racket Users > Subject: Re: [racket] Is there a name for: (lambda (x) (x)) ? > > I think you give us too much credit. :) > > On Thu, Sep 23, 2010 at 9:27 AM, Tim Brown > <[email protected]> wrote: > > On 23/09/10 14:23, Robby Findler wrote: > >> > >> I just write (λ (t) (t)) when it happens to me. It doesn't really > >> seem like it needs a separate name (but maybe I'm in a bit > too deep). > >> > >> Robby > > > > I wondered whether there was a more "cultural" reason for insisting > > that > > *somewhere* in the program there is a need to type: (λ (t) (t)) > > > > Remind us of our roots, or something. (Or is it an in joke?) > > > > Tim > > > > -- > > Tim Brown <[email protected]> | City Computing Limited > > > | > > T: +44 20 8770 2110 | City House, Sutton > Park Road > > | > > F: +44 20 8770 2130 | Sutton, Surrey, SM1 > 2AE, GB > > | > > > -------------------------------------------------------------- > ---------| > > BEAUTY: What's in your eye when you have a bee in your > hand > > | > -------------------------------------------------------------- > ---------' > > City Computing Limited registered in London No. 1767817. > > Registered Office: City House, Sutton Park Road, Sutton, > Surrey, SM1 > > 2AE VAT number 372 8290 34. > > > > > _________________________________________________ > For list-related administrative tasks: > http://lists.racket-lang.org/listinfo/users _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/users
