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if A is a subset of B and the frontier of B is a subset of A then A=B.
I am pretty sure that this is true as I drew I diagram and I think this helped.
A frontier point has a sequence in the set and a sequence in the compliment that both converge to the same limit. However I'm not really sure how to use this definition to help me
Thanks
I am pretty sure that this is true as I drew I diagram and I think this helped.
A frontier point has a sequence in the set and a sequence in the compliment that both converge to the same limit. However I'm not really sure how to use this definition to help me
Thanks