For the set S = {1,2,3,4} U (5,6), what is an interior point of S?A point S n delS?A point in delS - SAn accumulation point of S that is not in S (and a sequence that converges to it)A ball about the point x = 5.03 that is contained in S?
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Originally Posted by jhh1014 For the set S = {1,2,3,4} U (5,6), what is an interior point of S?A point S n delS?A point in delS - SAn accumulation point of S that is not in S (and a sequence that converges to it)A ball about the point x = 5.03 that is contained in S? What is the definitions of these terms? I have never seen delS. What does it mean? I will do one for you. The interior is You must post some efforts.
∂S, is the boundary of S. I think the ∂S is the set {1,2,3,4,5,6}, but I am not sure. Would that make a point in S ∩ ∂S be any of those numbers?
Originally Posted by jhh1014 ∂S, is the boundary of S. I think the ∂S is the set {1,2,3,4,5,6}, but I am not sure. Would that make a point in S ∩ ∂S be any of those numbers? That is completely standard notation. But it is not 'del" it is delta. In LaTeX it is [TEX]\delta(S)[/TEX] gives . Please learn to use LaTeX. On the advanced toolbar the gives the [TEX]..[/TEX] wraps .
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