Unkindness Of Ravens Unkindness Of Ravens Unkindness Of Ravens is an Irish gothic rock/metal band formed in 2014 in Tipperary, Ireland. Their debut album "Under Stolen Skies" was released in November 2015 on now defunct label Dura Gesta Records [] based in Michigan in the United States. The band's first single "Leanan Sídhe" was released simultaneously with an accompanying video which explored themes around ancient Irish mythological characters and was filmed in The Burren and Slieve Bloom Mountains. The band is fronted by Darren Keegan and the band's style has been described as "melancholic and dramatic." The band was created by Keegan with
Collectively exhaustive events Compare this to the concept of a set of mutually exclusive events. In such a set no more than one event can occur at a given time. (In some forms of mutual exclusion only one event can ever occur.) The set of all possible die rolls is both mutually exclusive and collectively exhaustive (i.e., "MECE"). The events 1 and 6 are mutually exclusive but not collectively exhaustive. The events "even" (2,4 or 6) and "not-6" (1,2,3,4, or 5) are collectively exhaustive but not mutually exclusive. In some forms of mutual exclusion only one event can ever occur, whether collectively exhaustive