Date: Nov 17, 2012 6:01 AM
Author: Kaba
Subject: Re: topology definition question

17.11.2012 10:47, Daniel J. Greenhoe kirjoitti:
> Thank you very much Kaba and Jesse for your help. I appreciate it.
> If it really does come down to convention, maybe for me it would be best that I just give all 4 of the criteria rather than have to first state what convention I am assuming for the set operations.

That's one possibility. For me, this is another example of why it is
always important to define boundary cases correctly in a definition: it
cuts down the complexity of whatever uses that definition.