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-rw-r--r--src/elab_env.sig1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/elab_env.sig b/src/elab_env.sig
index f7f798e5..8fe1da71 100644
--- a/src/elab_env.sig
+++ b/src/elab_env.sig
@@ -33,6 +33,7 @@ signature ELAB_ENV = sig
type env
val empty : env
+ val basis : env
exception UnboundRel of int
exception UnboundNamed of int