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On 11/7/2024 3:46 AM, WM wrote:
I want to find out from you (WM)It is not in contact with the set. "For every eps" is not a valid criterion because eps depends on what you can define, not on what exists. The endpoint is in contact with the set.
what "not in contact with" means.
For a point
in the boundary but not in the set,
is it "not in contact with" the set?
Is it "in contact with" the set?
0 is in the boundary of [-1,0) > Is 0 "in contact with" [-1,0) ?I am not an expert on these things. I would say it is in contact with the set because a point of the set is next to it. The closure of a set is in contact with the set.
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