On Jan 24, 7:31 am, e <evier...@gmail.com> wrote:
> Then again, I already chimed in. a list isn't a set. You said so in the
> introduction. Maybe set's need there own print representation, like <>
> ..... uh oh, starting to look like C++
Like this?:
user=> (hash-set 1 2 3)
#{1 2 3}
> On Sat, Jan 24, 2009 at 3:43 AM, Mark Engelberg
> <mark.engelb...@gmail.com>wrote:
> > Anyone want to try to convince me otherwise? If you think my logic is
> > flawed, I'd love to hear your take on this problem.
My intuition is that the subsets returned by powerset should have the
same type as the argument:
user=> (powerset #{1 2})
(#{} #{1} #{2} #{1 2})
user=> (powerset [1 2])
([] [1] [2] [1 2])
user=> (powerset '(1 2))
(() (1) (2) (1 2))
For non-set collections, the name "powerset" might be misleading.
Maybe the right name for the concept is something more like
"subcolls".
-- Nathan
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