diff lib/ur/listPair.ur @ 1089:f1647f16097d

Convenience libifying; allow more NULLs with globals
author Adam Chlipala <adamc@hcoop.net>
date Thu, 24 Dec 2009 15:49:52 -0500
parents 1c2f335297b7
children 5c30eea7aa78
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