From 5a53c75f533f2ae758635e1989c4e7fb2b6469d5 Mon Sep 17 00:00:00 2001
From: Chloe Brown <chloe.brown.00@outlook.com>
Date: Sun, 16 Apr 2023 14:50:55 +0100
Subject: Prove whnfs do not reduce.

---
 src/Core/Term/NormalForm.idr | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 src/Core/Term/NormalForm.idr

(limited to 'src/Core/Term')

diff --git a/src/Core/Term/NormalForm.idr b/src/Core/Term/NormalForm.idr
new file mode 100644
index 0000000..9984bee
--- /dev/null
+++ b/src/Core/Term/NormalForm.idr
@@ -0,0 +1,22 @@
+module Core.Term.NormalForm
+
+import Core.Term
+
+-- Definition ------------------------------------------------------------------
+
+public export
+data Neutral : Term n -> Type where
+  Var : Neutral (Var i)
+  App : Neutral t -> Neutral (App t u)
+
+public export
+data Whnf : Term n -> Type where
+  Ntrl : Neutral t -> Whnf t
+
+  Set : Whnf Set
+
+  Pi : Whnf (Pi a b)
+  Abs : Whnf (Abs t)
+
+%name Neutral n, m
+%name Whnf n, m
-- 
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