Sat, 27 Jan 2018 16:45:27 +0100 tuned output;
wenzelm [Sat, 27 Jan 2018 16:45:27 +0100] rev 67513
tuned output;
Sat, 27 Jan 2018 16:37:41 +0100 more operations;
wenzelm [Sat, 27 Jan 2018 16:37:41 +0100] rev 67512
more operations;
Sat, 27 Jan 2018 10:27:57 +0100 include lemmas generally useful for combinatorial proofs
bulwahn [Sat, 27 Jan 2018 10:27:57 +0100] rev 67511
include lemmas generally useful for combinatorial proofs
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