while true: !!!
Donn Cave
donn at u.washington.edu
Wed Dec 20 20:30:39 EST 2000
Quoth Greg Ewing <greg at cosc.canterbury.ac.nz>:
| gbreed at cix.compulink.co.uk wrote:
|>
|> Take any type, and if
|> there's a way of it being nothing, it evaluates false.
|
| Hmmm, let's try that out. Is [[]] true or false?
| It's a list containing a list containing nothing.
| Since [] is false, a list containing nothing must be
| nothing. So [[]] is a list containing nothing,
| which is nothing. Ah, it must be false! :-)
I sure hate to prolong the life of this miserable thread,
but that's too silly. [[]] is not a list containing nothing,
it's a list containing []. [] is not nothing, it's something
that's false.
Donn Cave, donn at u.washington.edu
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