$k$-fold covering of a connected set, $B$.
135256
The fiber of a covering space over a connected space has constant cardinality
151051
connectedness of uniform topology
123656
Covering map between orientable compact connected surfaces without boundary with genus $g$
79697
If $A$ is a subset of $B$, then the closure of $A$ is contained in the closure of $B$.
66592
If a covering map has a section, is it a $1$-fold cover?
146933
Proving bipartition in a connected planar graph
106756
Union and Intersection of Sets $A_{i}$ and $B_{j}$
94928
Every $k$ vertices in an $k$ - connected graph are contained in a cycle.
133152
(X,d) be a compact metric space. For every open cover, show there exists ε > 0 such that ∀𝑥 ∈ X, B(x,ε) is contained in some member of the cover.
36878
Prove that $\operatorname{SL}(n,\Bbb R)$ is connected.
151544
Prove that if $B$ is the set of rationals in $[0,1]$ with a finite subcover, then: $1 \leq \sum_{k=1}^n m^*(I_k)$
106801
Labelled spanning trees of $K_n-e$
70538
Intersection and union of simply connected domain
146664
The union of two linearly independent subsets
31266
Proof of "the continuous image of a connected set is connected"
45337
Suppose that $V, W$ are closed in $X$ and that $V\cap W, V\cup W$ are connected. Show that $V$ and $W$ are connected.
35092
Match covered graph is 2-connected