Compact Set
The Set 
is compact if, from any Sequence of elements 
, 
, ...of , a subsequence can alwaysbe extracted which tends to some limit element 
of . Compact sets are therefore closed and bounded.
- Factorial Prime
- Factorial Sum
- Factoring
- Factorion
- Factorization
- Factor Level
- Factor Ring
- Factor Space
- Fagnano's Point
- Fagnano's Problem
- Fagnano's Theorem
- Fair Game
- Fairy Chess
- Fallacy
- False
- False Position Method
- Faltung (Form)
- Faltung (Function)
- Fan
- Fano Plane
- Fano's Axiom
- Farey Sequence
- Farey Series
- Farkas's Lemma
- Faro Shuffle