src/ZF/AC/WO6_WO1.ML
Thu, 13 Apr 1995 14:15:36 +0200 lcp Deleted subset_imp_Un_Diff_eq, as it is identical to
Fri, 31 Mar 1995 11:55:29 +0200 lcp New example of AC Equivalences by Krzysztof Grabczewski
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