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In <>
David Jones wrote:

Section 2.2 says tables "can contain values of all types
(except nil)", but this is inconsistent with ipairs which
says "up to the first integer key with a nil value in the
table" (keys can't have nil values), and "next" which says
"There is no difference between a field not present in a
table or a field with value nil".

Roberto's reply to a similar comment was:

Tables cannot contain nils, but arrays can.

Sorry again for this not being threaded.  I'm working on
getting Hotmail to not throw away messages from this list.