From 75508769762372043387c67a9abe94e8f940e80a Mon Sep 17 00:00:00 2001
From: Gaëtan Gilbert
Date: Fri, 27 Oct 2017 14:03:51 +0200
Subject: Add a non-cumulative impredicative universe SProp.

Note currently it's impossible to define inductives in SProp because
indtypes.ml and the pretyper aren't fully plugged.
---
 kernel/type_errors.mli | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'kernel/type_errors.mli')

diff --git a/kernel/type_errors.mli b/kernel/type_errors.mli
index c5ab9a4e73..e208c57e0a 100644
--- a/kernel/type_errors.mli
+++ b/kernel/type_errors.mli
@@ -65,6 +65,7 @@ type ('constr, 'types) ptype_error =
       int * Name.t array * ('constr, 'types) punsafe_judgment array * 'types array
   | UnsatisfiedConstraints of Univ.Constraint.t
   | UndeclaredUniverse of Univ.Level.t
+  | DisallowedSProp
 
 type type_error = (constr, types) ptype_error
 
@@ -134,5 +135,7 @@ val error_unsatisfied_constraints : env -> Univ.Constraint.t -> 'a
 
 val error_undeclared_universe : env -> Univ.Level.t -> 'a
 
+val error_disallowed_sprop : env -> 'a
+
 val map_pguard_error : ('c -> 'd) -> 'c pguard_error -> 'd pguard_error
 val map_ptype_error : ('c -> 'd) -> ('c, 'c) ptype_error -> ('d, 'd) ptype_error
-- 
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