+val is_equation: NCic.metasenv ->
+ NCic.substitution -> NCic.context -> NCic.term -> bool
+val paramod :
+ #NRstatus.status ->
+ NCic.metasenv -> NCic.substitution -> NCic.context ->
+ state ->
+ (NCic.term * NCic.term) ->
+ (NCic.term * NCic.term * NCic.metasenv * NCic.substitution) list