val decompose_tac:
?mk_fresh_name_callback:ProofEngineTypes.mk_fresh_name_type ->
?user_types:((UriManager.uri * int) list) ->
val decompose_tac:
?mk_fresh_name_callback:ProofEngineTypes.mk_fresh_name_type ->
?user_types:((UriManager.uri * int) list) ->