From 2bd69bf893b7e1ebe4186639526451caf2083b12 Mon Sep 17 00:00:00 2001
From: Greg Brown <greg.brown01@ed.ac.uk>
Date: Fri, 2 Dec 2022 14:14:44 +0000
Subject: WIP: Frex is free

---
 src/Data/Morphism/Indexed.idr | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'src/Data/Morphism/Indexed.idr')

diff --git a/src/Data/Morphism/Indexed.idr b/src/Data/Morphism/Indexed.idr
index c271c90..6737275 100644
--- a/src/Data/Morphism/Indexed.idr
+++ b/src/Data/Morphism/Indexed.idr
@@ -11,3 +11,11 @@ record IFunction {a : Type} (x, y : ISetoid a) where
   constructor MkIFunction
   func : IFunc x.U y.U
   cong : (i : a) -> {u, v : x.U i} -> x.relation i u v -> y.relation i (func i u) (func i v)
+
+public export
+ifunc : IFunc x y -> IFunction (isetoid x) (isetoid y)
+ifunc f = MkIFunction f (\i => cong (f i))
+
+public export
+compFunc : IFunction b c -> IFunction a b -> IFunction a c
+compFunc f g = MkIFunction (\i => f.func i . g.func i) (\i => f.cong i . g.cong i)
-- 
cgit v1.2.3