Category:T1 Spaces

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This category contains results about $T_1$ (Fréchet) spaces in the context of Topology.

$\struct {S, \tau}$ is a Fréchet space or $T_1$ space if and only if:

$\forall x, y \in S$ such that $x \ne y$, both:
$\exists U \in \tau: x \in U, y \notin U$
$\exists V \in \tau: y \in V, x \notin V$


This category has the following 5 subcategories, out of 5 total.

Pages in category "T1 Spaces"

The following 48 pages are in this category, out of 48 total.