| BasicProof of Cic.term
| ProofBlock of
Cic.substitution * UriManager.uri *
+ (Cic.name * Cic.term) * Cic.term *
(* name, ty, eq_ty, left, right *)
- (Cic.name * Cic.term * Cic.term * Cic.term * Cic.term) *
+(* (Cic.name * Cic.term * Cic.term * Cic.term * Cic.term) * *)
(Utils.pos * equality) * proof
- | ProofGoalBlock of proof * equality
+ | ProofGoalBlock of proof * proof (* equality *)
| ProofSymBlock of Cic.term Cic.explicit_named_substitution * proof
(* val demodulation: int -> environment -> equality -> equality -> int * equality *)
+val meta_convertibility: Cic.term -> Cic.term -> bool
+
val meta_convertibility_eq: equality -> equality -> bool
val is_identity: environment -> equality -> bool