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-rw-r--r--pretyping/evd.mli2
1 files changed, 2 insertions, 0 deletions
diff --git a/pretyping/evd.mli b/pretyping/evd.mli
index 55c54f2c..194880e2 100644
--- a/pretyping/evd.mli
+++ b/pretyping/evd.mli
@@ -147,6 +147,8 @@ val is_empty : evar_map -> bool
there are uninstantiated evars in [sigma]. *)
val has_undefined : evar_map -> bool
+(** [add sigma ev info] adds [ev] with evar info [info] in sigma.
+ Precondition: ev must not preexist in [sigma]. *)
val add : evar_map -> evar -> evar_info -> evar_map
val find : evar_map -> evar -> evar_info