From 255ba39c758535589dfd66ffb6efb108919ecc08 Mon Sep 17 00:00:00 2001
From: Jed Barber <jjbarber@y7mail.com>
Date: Fri, 11 May 2012 17:52:22 +1000
Subject: Incorporated use of Data.Set and Data.Map

---
 Theorem.hs | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

(limited to 'Theorem.hs')

diff --git a/Theorem.hs b/Theorem.hs
index c4a36c8..c97a399 100644
--- a/Theorem.hs
+++ b/Theorem.hs
@@ -4,16 +4,16 @@ module Theorem (
 
 
 
-import Data.List
+import qualified Data.Set as Set
 import TypeVar
 import Term
 
 
 
-data Theorem = Theorem { thmHyp :: [Term]
-                       , thmCon :: Term } deriving (Eq)
+data Theorem = Theorem { thmHyp :: Set.Set Term
+                       , thmCon :: Term } deriving (Eq, Ord)
 
 
 
 instance Show Theorem where
-    show a   =   (show . thmHyp $ a) ++ " |- " ++ (show . thmCon $ a)
+    show a   =   (show . Set.toList . thmHyp $ a) ++ " |- " ++ (show . thmCon $ a)
-- 
cgit