Module type SetMap.Projection
val proj_map : (elt_a -> elt_b) -> 'b -> ('b -> 'a -> 'b) -> 'a map_a -> 'b map_bproj_map f init merge map is a map mapping each element b to the result of the itteration of the function merge over the image in map of the element a in f such that f(a)=b, starting with the element init.
val proj_map_monadic : 'parameters -> 'method_handler -> (elt_a -> elt_b) -> 'b -> ('parameters -> 'method_handler -> 'b -> 'a -> 'method_handler * 'b) -> 'a map_a -> 'method_handler * 'b map_bval proj_set : (elt_a -> elt_b) -> set_a -> set_bproj_set f set is the set {f(a) | a\in S}
val proj_set_monadic : 'parameters -> 'method_handler -> ('parameters -> 'method_handler -> elt_a -> 'method_handler * elt_b) -> set_a -> 'method_handler * set_bval partition_set : (elt_a -> elt_b) -> set_a -> set_a map_bpartition_set f set is the map mapping any element b with an antecedent for f in the set set, into the set of its antecedents, ie to the set {a\in set | f(a)=b}.