Section PartialExtendedMapSimulations.
Context {base_fst : BaseParams}.
Context {base_snd : BaseParams}.
Context {multi_fst : MultiParams base_fst}.
Context {multi_snd : MultiParams base_snd}.
Context {name_map : MultiParamsNameTotalMap multi_fst multi_snd}.
Context {msg_map : MultiParamsMsgPartialMap multi_fst multi_snd}.
Context {multi_map : MultiParamsPartialExtendedMap multi_fst multi_snd}.
Context {name_map_bijective : MultiParamsNameTotalMapBijective name_map}.
Context {multi_map_congr : MultiParamsPartialExtendedMapCongruency name_map msg_map multi_map}.

Lemma pt_ext_init_handlers_fun_eq :
init_handlers = fun n : name => pt_ext_map_data (init_handlers (tot_map_name_inv n)) (tot_map_name_inv n).