Tue, 16 May 2023 19:20:18 +0200 wenzelm more careful treatment of set_context / reset_context for persistent morphisms;
Tue, 16 May 2023 17:08:31 +0200 wenzelm clarified transfer / trim_context on persistent Token.source (e.g. attribute expressions): actually set/reset implicit context;
Tue, 16 May 2023 15:15:56 +0200 wenzelm tuned signature;
Tue, 16 May 2023 14:30:32 +0200 wenzelm support for context within morphism (for background theory);
Mon, 15 May 2023 22:46:04 +0200 wenzelm proper transfer to supported "bundle ... begin unbundle ... end", e.g. see theory "AFP/Probabilistic_Timed_Automata.Graphs";
Mon, 15 May 2023 20:55:17 +0200 wenzelm clarified signature;
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