# Category:Topological Sum

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This category contains results about Topological Sum.

Let $\struct {X, \tau_1}$ and $\struct {Y, \tau_2}$ be topological spaces.

The **topological sum** $\struct {Z, \tau_3}$ of $X$ and $Y$ is defined as:

- $Z = X \sqcup Y$

where:

- $X \sqcup Y$ denotes the disjoint union of $X$ and $Y$
- $\tau_3$ is the topology generated by $\tau_1$ and $\tau_2$.

## Pages in category "Topological Sum"

The following 2 pages are in this category, out of 2 total.