Reduction.ValueSourceReduction rules for products of values abstractions
type 'a value_reduction_man = {get : 'r. 'r Core.Id.id -> 'a -> 'r;get id pv returns the value of domain with identifier id in the product value pv
set : 'r. 'r Core.Id.id -> 'r -> 'a -> 'a;set id v pv sets the value of domain with identifier id in the product value pv
}Manager for value reduction rules
Register a new value reduction
Find a value reduction by its name
List all simplified value reductions