A(n) = R-{n}
A(n)=R-{n} is the counterexample...
I tried this case many times but it was not the counterexample,
but after some fresh air, it is clear this is counter example..
[SOLVED]Finite-Compliment Topology and intersection of interior
Homework Statement
Given topological space (R^{1}, finite compliment topology), find counter example to show that
Arbitary Intersection of (interior of subset of R^{1}) is not equal to Interior of (arbitary intersection of...