Sat, 05 May 2018 13:56:51 +0200 cleanup session output before starting build job;
wenzelm [Sat, 05 May 2018 13:56:51 +0200] rev 68086
cleanup session output before starting build job; tuned signature;
Sun, 06 May 2018 15:29:11 +0200 reinstated old lemma name
nipkow [Sun, 06 May 2018 15:29:11 +0200] rev 68085
reinstated old lemma name
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