[racket] why there's not mcadr mcdar and so on?

(require racket/mpair)

whether they should or shouldn't be built in... what a question... more 
philosophical than technical nature, no?...

----- Original Message ----- 
From: "Chongkai Zhu" <czhu at cs.utah.edu>
To: <users at racket-lang.org>
Sent: Monday, March 26, 2012 3:43 AM
Subject: [racket] why there's not mcadr mcdar and so on?


> It seems to be they should be build-in just as cadr,cdar ...
>
> Chongkai
> ____________________
>  Racket Users list:
>  http://lists.racket-lang.org/users
>