On 28 Dec 2007, at 3:37 AM, Cristian Baboi wrote:

Thank you.

It sounds like a limit. xn --> x for n -->  :-)

I could say that LUBs are colimits, not limits, but I won't :)

More seriously, I don't like the calculus --> notation in this context; these are suprema, not lims.


How can I get that maximal value when I start from a non maximal one ?

Take the least upper bound of a maximum set.


[1 .. ] and x=1:x are maximal ?

Yes.

jcc

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