CONTRIBUTORS

--- a/CONTRIBUTORS	Tue Aug 29 20:34:43 2017 +0100
+++ b/CONTRIBUTORS	Wed Aug 30 18:01:27 2017 +0200
@@ -14,6 +14,9 @@
   Prover IDE improvements.
   Support for SQL databases in Isabelle/Scala: SQLite and PostgreSQL.
 
+* August 2017: Andreas Lochbihler, ETH Zurich
+  type of unordered pairs (HOL-Library.Uprod)
+
 * August 2017: Manuel Eberl, TUM
   HOL-Analysis: infinite products over natural numbers,
   infinite sums over arbitrary sets, connection between formal