Infinitely often and almost always
Let be a sequence of events in some sample space .
| perspective | infinitely often | almost always |
|---|---|---|
| unions and intersections | ||
| first-order quantifiers | Failed to parse (unknown function "\eq"): {\displaystyle \exists N \eq 1\ \forall n \geq N\ x \in A_n} | |
| verbal expression | ||
| lim sup/lim inf | ||
| limit of sup/inf |