* http://cs.unibo.it/helm/.
*)
+(* This module implements the Query interface to the Coercion Graph *)
+
type coercion_search_result =
| SomeCoercion of Cic.term
| NoCoercion
val look_for_coercion :
Cic.term -> Cic.term -> coercion_search_result
-(* also adds them to the Db *)
-val close_coercion_graph:
- CoercDb.coerc_carr -> CoercDb.coerc_carr -> UriManager.uri ->
- (UriManager.uri * Cic.obj * CicUniv.universe_graph) list
+val is_a_coercion: Cic.term -> bool
+val source_of: Cic.term -> Cic.term
+val target_of: Cic.term -> Cic.term