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diff lib/ur/top.urs @ 630:6a6eb9882d57

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Top.Fold.mp
author Adam Chlipala <adamc@hcoop.net>
date Tue, 24 Feb 2009 13:50:39 -0500
parents e68de2a5506b
children effa7d43aac3
line wrap: on
line diff
--- a/lib/ur/top.urs	Tue Feb 24 13:46:08 2009 -0500
+++ b/lib/ur/top.urs	Tue Feb 24 13:50:39 2009 -0500
@@ -12,6 +12,8 @@
                -> [[nm] ~ r] => folder r -> folder ([nm = v] ++ r)
     val concat : K --> r1 ::: {K} -> r2 ::: {K}
                  -> [r1 ~ r2] => folder r1 -> folder r2 -> folder (r1 ++ r2)
+    val mp : K1 --> K2 --> f ::: (K1 -> K2) -> r ::: {K1}
+             -> folder r -> folder (map f r)
 end