On Feb 15, 5:27 pm, Steve Holden <[EMAIL PROTECTED]> wrote: > True enough, but aren't they of indeterminate magnitude? Since infinity > == infinity + delta for any delta, comparison for equality seems a > little specious.
The equality is okay; it's when you start trying to apply arithmetic laws like a+c == b+c implies a == b that you get into trouble. In other words, the doubly-extended real line is a perfectly well-defined and well-behaved *set*, and even a nice (compact) topological space with the usual topology. It's just not a field, or a group under addition, or ... Mark -- http://mail.python.org/mailman/listinfo/python-list
