pisrationalhahaha
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- Aug 22, 2017
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Prove that A= { (x,1/x) ; x>0 } is closed: trying to show closure(A) is subset of A
Prove that A= { (x,1/x) ; x>0 } is closed
I was trying to prove that Cl(A)⊆A
So if I take (a,b)∈Cl(A)⇒B((a,b),r)∩A=ϕ for any r>0
Then I should prove that this couple belongs to A
Well here is the problem, I don't know how to continue
Prove that A= { (x,1/x) ; x>0 } is closed
I was trying to prove that Cl(A)⊆A
So if I take (a,b)∈Cl(A)⇒B((a,b),r)∩A=ϕ for any r>0
Then I should prove that this couple belongs to A
Well here is the problem, I don't know how to continue
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