Am Dienstag, 21. April 2015 14:23 CEST, Simon Albrecht <simon.albre...@mail.de>
schrieb:
> ... Yet I have taken inspiration from there to create the
> attached tool for making nice margins, which I’ve been using ever since.
>
Hmm, maybe I miss the obvious, but in your code:
(define pair-or-rational? (or pair? rational?))
you might as well write (define pair-or-rational? pair?) since (or pair?
rational?) allways evaluates to
pair? ...
Do you want
(define pair-or-rational? (thing)
(or
(pair? thing)
(rational? thing)))
Cheers, Ralf Mattes
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