A lower bound on the probability of a finite union of events.

Hongyan Kuai Fady Alajaji Glen Takahara A lower bound on the probability of a finite union of events. 147-158 2000 215 Discrete Mathematics http://dx.doi.org/10.1016/S0012-365X(99)00246-0 db/journals/dm/dm215.html#KuaiAT00