Fri, 15 Oct 2021 19:25:31 +0200 wenzelm discontinued Term.dest_abs / Logic.dest_all, which are officially superseded by Variable.dest_abs etc., but there are also Term.dest_abs_global to recover existing tools easily;
Fri, 15 Oct 2021 17:45:47 +0200 wenzelm more accurate treatment of context, notably for nested Goal.proof / SUBPROOF;
Fri, 15 Oct 2021 14:18:11 +0200 wenzelm tuned;
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