1 files changed, 23 insertions, 0 deletions
diff --git a/test-suite/bugs/closed/3709.v b/test-suite/bugs/closed/3709.v
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+++ b/test-suite/bugs/closed/3709.v
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+Module NonPrim.
+  Unset Primitive Projections.
+  Record hProp := hp { hproptype :> Type }.
+  Goal forall (h : (Type -> hProp) -> (Type -> hProp)) k f,
+         (forall y, h y = y) ->
+         h (fun b : Type => {| hproptype := f b |}) = k.
+  Proof.
+    intros h k f H.
+    etransitivity.
+    apply H.
+    admit.
+  Defined.
+End NonPrim.
+Module Prim.
+  Set Primitive Projections.
+  Record hProp := hp { hproptype :> Type }.
+  Goal forall (h : (Type -> hProp) -> (Type -> hProp)) k f,
+         (forall y, h y = y) ->
+         h (fun b : Type => {| hproptype := f b |}) = k.
+  Proof.
+    intros h k f H.
+    etransitivity.
+    apply H.