What are the open sets in the product topology on $ R \times R \times R \times R .... \infty $?
123470
Why are box topology and product topology different on infinite products of topological spaces?
119312
Product and Box Topologies
27998
Prove existence of disjoint open sets containing disjoint closed sets in a topology induced by a metric.
110957
No non-trivial clopen sets in $\mathbb{R}$? How to give a direct proof?
99353
Topology on cartesian product and product topology.
140103
If product of two sets $A\times B$ is closed, are $A$ and $B$ closed?
126463
Can open sets and closed sets of $\mathbb{R}^n$ be homeomorphic?
3404
What are the convergent sequences in the cofinite topology
147350
Homeomorphism between $\prod X_i$ and the Cantor set
94825
Open set as a finite union of closed sets
59424
Showing that $B=\{(x,y) \in \Bbb{R^2} \mid \ xy>0 \}$ is an open set
127900
Interior of closure of open set in topological space
153934
How to prove that a set R\Z is open
113915
A star shaped open set in $\mathbb{R}^n$ is diffeomorphic to $\mathbb{R}^n$
31617
Is the collection $\tau_\infty = \{U:X-U$ is infinite or empty or all of $X\}$ a topology on $X$?
90816
Why does the product topology allow proper subsets for only finitely many elements?
156922
Proving convergence iff projection converges in product topology