Category:Fréchet Filters

This category contains results about Fréchet Filters.
Definitions specific to this category can be found in Definitions/Fréchet Filters.

Let $S$ be an infinite set.

Let $\FF$ be the set of all $A \subset S$ such that $A$ is cofinite in $S$.

Then $\FF$ is the Fréchet filter on $S$.