definition of \(G_\delta\) subset of topological space
Topics
About: topological space
The table of contents of this article
Starting Context
- The reader knows a definition of topological Space.
Target Context
- The reader will have a definition of \(G_\delta\) subset of topological space.
Orientation
There is a list of definitions discussed so far in this site.
There is a list of propositions discussed so far in this site.
Main Body
1: Structured Description
Here is the rules of Structured Description.
Entities:
\( T\): \(\in \{\text{ the topological spaces }\}\)
\(*S\): \(\subseteq T\)
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Conditions:
\(\exists J \subseteq \mathbb{N}, \exists f: J \to \{\text{ the open subsets of } T\} (S = \cap_{j \in J} f (j))\)
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