Definition talk:Infinite
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Do we need to restrict the domain of the multiplicative properties to Z+? --Cynic (talk) 05:41, 16 February 2010 (UTC)
Suppose not but I don't think it matters, results for other number fields could be deduced if necessary (but probably won't) - we could add them as results if they are needed. --Matt Westwood 06:21, 16 February 2010 (UTC)
No, I mean isn't $(-\infty)\cdot(-5) = +\infty$? --Cynic (talk) 03:22, 17 February 2010 (UTC)
Not according to the little book I'm looking at written by Ian Stewart that I've got here ... Not too sure I understand it either, but in this context (without going into the full details of orders of aleph and ordinal/cardinal numbers) it may be adequate. --Matt Westwood 06:18, 17 February 2010 (UTC)
