(* returns: (carr,menv,(saturated coercion,last arg)option,idem) list *)
val meets :
Cic.metasenv -> Cic.substitution -> Cic.context ->
- CoercDb.coerc_carr -> CoercDb.coerc_carr ->
+ bool * CoercDb.coerc_carr -> bool * CoercDb.coerc_carr ->
(CoercDb.coerc_carr * Cic.metasenv *
(Cic.term * Cic.term) option * (Cic.term * Cic.term) option) list