Sun, 25 Jul 2010 21:42:39 +0200 simplified/clarified register_thy: more precise treatment of new dependencies, remove descendants;
wenzelm [Sun, 25 Jul 2010 21:42:39 +0200] rev 37954
simplified/clarified register_thy: more precise treatment of new dependencies, remove descendants; eliminated obsolete touch_child_thys, register_theory;
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