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-rw-r--r--kernel/mod_subst.mli2
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/mod_subst.mli b/kernel/mod_subst.mli
index 5384d0f85..6ae9649d6 100644
--- a/kernel/mod_subst.mli
+++ b/kernel/mod_subst.mli
@@ -85,6 +85,8 @@ val occur_mbid : mod_bound_id -> substitution -> bool
val update_subst_alias : substitution -> substitution -> substitution
+val update_subst : substitution -> substitution -> substitution
+
val subst_key : substitution -> substitution -> substitution
val join_alias : substitution -> substitution -> substitution