val unify :
#NRstatus.status ->
?test_eq_only:bool -> (* default: false *)
+ ?swap:bool -> (* default: false *)
NCic.metasenv -> NCic.substitution -> NCic.context ->
NCic.term -> NCic.term ->
NCic.metasenv * NCic.substitution
NCic.term -> NCic.term list ->
NCic.metasenv * NCic.substitution * NCic.term
+val sortfy :
+ exn ->
+ NCic.metasenv ->
+ NCic.substitution ->
+ NCic.context ->
+ NCic.term -> NCic.metasenv * NCic.substitution * NCic.term
val debug : bool ref