Union of Connected Sets with Common Point is Connected/Proof 2
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Theorem
Let $T = \struct {S, \tau}$ be a topological space.
Let $\family {B_\alpha}_{\alpha \mathop \in A}$ be a family of connected sets of $T$.
Let $\exists x \in \ds \bigcap \family {B_\alpha}_{\alpha \mathop \in A}$.
Then
- $\ds \bigcup \family {B_\alpha}_{\alpha \mathop \in A}$ is a connected set of $T$.
Proof
Follows immediately from Union of Connected Sets with Non-Empty Intersections is Connected.
$\blacksquare$