Sun, 24 Jun 2018 15:57:48 +0200 wenzelm simplified ZF theory names (in contrast to 6a0801279f4c): session-qualification already achieves disjointness;
Sun, 24 Jun 2018 11:41:41 +0100 paulson merged
Sun, 24 Jun 2018 11:41:32 +0100 paulson more modernisaton and de-applying
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