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-rw-r--r--proofs/proofview_monad.mli1
1 files changed, 1 insertions, 0 deletions
diff --git a/proofs/proofview_monad.mli b/proofs/proofview_monad.mli
index 4d4e4470c..7a86c7969 100644
--- a/proofs/proofview_monad.mli
+++ b/proofs/proofview_monad.mli
@@ -65,6 +65,7 @@ module Logical : sig
val zero : exn -> 'a t
val plus : 'a t -> (exn -> 'a t) -> 'a t
val split : 'a t -> (('a,(exn->'a t)) list_view) t
+ val once : 'a t -> 'a t
val lift : 'a NonLogical.t -> 'a t