Sat, 07 Dec 2024 23:40:29 +0100 wenzelm clarified signature;
Sat, 07 Dec 2024 23:50:18 +0100 wenzelm clarified term positions and markup: syntax = true means this is via concrete syntax;
Sat, 07 Dec 2024 23:08:51 +0100 wenzelm tuned signature: more operations;
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