Thu, 13 Sep 2018 21:18:43 +0200 wenzelm tuned;
Fri, 14 Sep 2018 10:07:59 +0200 nipkow added quicksort
Fri, 14 Sep 2018 07:31:55 +0200 nipkow tuned
Thu, 13 Sep 2018 16:30:07 +0200 wenzelm more robust: avoid race condition wrt. cleanup of ML process, e.g. relevant for "$ISABELLE_TMP/rat.ML" in theory Codegen.Further;
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