Borel–Cantelli lemmas

Theorem taught in Probability spaces and events, part of Stochastic processes

Borel–Cantelli lemmas

Type Theorem
Taught in Probability spaces and events
Part Stochastic processes
Questions using it 1

If \sum_n\mathrm{P}(A_n)<\infty, then \mathrm{P}(A_n\text{ infinitely often})=0. If the events A_n are independent and \sum_n\mathrm{P}(A_n)=\infty, then \mathrm{P}(A_n\text{ infinitely often})=1.

Used in

See also

Probability space

Glossary and index