Closure - Prove:
If H and K are disjoint closed point sets, then there exist open point sets U and V containing H and K respectively such that cl(U) and cl(V) are disjoint.
Closure - Prove:
If H is a closed point set and p is a point of S - H, then there exist open point sets U and V containing H and p respectively such that cl(U) and cl(V) are disjoint.
Understanding connected point sets. - Prove whether the following is true or false. If it is false give a counter example.
If M is a connected point set, the cl(M) is connected.
Real Analysis - Prove that the only set that are both open and closed are R and the empty set.