diff src/list_util.sig @ 417:e0e9e9eca1cb

Fix nasty de Bruijn substitution bug; TcSum demo
author Adam Chlipala <adamc@hcoop.net>
date Thu, 23 Oct 2008 12:58:35 -0400
parents e0ed0d4dabc9
children d20d6afc1206
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