* Isar/Pure: emulation of instantiation tactics (rule_tac, cut_tac, etc.) now consider the syntactic context of assumptions, giving a better chance to get type-inference of the arguments right (this is especially important for locales); * system: refrain from any attempt at filtering input streams; no longer support ``8bit'' encoding of old isabelle font, instead proper iso-latin characters may now be used;

tuned;

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