ABSTRACT
We can separate ACT in one way and not the other because the successful separation involves a division into events that are contiguous . Defi ne a contiguous event (set of states) for a given act as follows: E is contiguous iff E contains all states S such that min T ∈ E u ( T ) < u ( S ) < max T ∈ E u ( T ). And we can note that if the states of an act are divided into two contiguous events, then the value contribution of each event to the act will depend only on the probabilities and utilities of the states in the event. 12 For the sub-act over each contiguous event, its value will be stable and will depend only on the probabilities and utilities of the states within that event.
