Mon, 20 Sep 2021 20:22:32 +0200 wenzelm clarified signature;
Mon, 20 Sep 2021 20:24:43 +0200 desharna merged
Mon, 20 Sep 2021 15:30:03 +0200 desharna proper constants in TPTP $let binding
Mon, 20 Sep 2021 15:27:00 +0200 wenzelm more operations from Isabelle/ML;
Mon, 20 Sep 2021 15:11:13 +0200 wenzelm merged
Mon, 20 Sep 2021 13:52:09 +0200 wenzelm tuned proofs --- eliminated 'guess';
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