Syntax Atomic event:A complete specification of the state of the world about which the agent is uncertain ● E.g.,if the world consists of only two Boolean variables Cavity and Toothache,then there are 4 distinct atomic events: Cavity false ^Toothache=false Cavity false Toothache true Cavity true Toothache false Cavity true Toothache true Atomic events are mutually exclusive andSyntax • Atomic event: A complete specification of the state of the world about which the agent is uncertain • E.g., if the world consists of only two Boolean variables Cavity and Toothache, then there are 4 distinct atomic events: Cavity = false Toothache = false Cavity = false  Toothache = true Cavity = true  Toothache = false Cavity = true  Toothache = true • Atomic events are mutually exclusive and exhaustive