From 005fbe2dd67c6ec77282179032f94ffa6cb7788c Mon Sep 17 00:00:00 2001
From: Adam Chlipala <adamc@hcoop.net>
Date: Sun, 7 Jun 2009 16:45:00 -0400
Subject: Fix datatype import bug in Elaborate; fix server-side source setting;
 more standard library stuff

---
 lib/ur/option.ur | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'lib/ur/option.ur')

diff --git a/lib/ur/option.ur b/lib/ur/option.ur
index cb2a6b57..5ec093c0 100644
--- a/lib/ur/option.ur
+++ b/lib/ur/option.ur
@@ -4,3 +4,8 @@ fun isSome [a] x =
     case x of
         None => False
       | Some _ => True
+
+fun mp [a] [b] f x =
+    case x of
+        None => None
+      | Some y => Some (f y)
-- 
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