Category:Definitions/Systems of Open Neighborhoods
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This category contains definitions related to Systems of Open Neighborhoods.
Related results can be found in Category:Systems of Open Neighborhoods.
Let $T = \struct {S, \tau}$ be a topological space.
Let $x \in S$.
Let $\map \UU x$ be the set of all open neighborhoods of $x$ in $T$.
Then $\map \UU x$ is the system of open neighborhoods of the point $x$.
Pages in category "Definitions/Systems of Open Neighborhoods"
This category contains only the following page.