Mon, 16 Jun 2008 17:54:39 +0200 allE_Nil: only one copy, proven in regular theory source;
wenzelm [Mon, 16 Jun 2008 17:54:39 +0200] rev 27228
allE_Nil: only one copy, proven in regular theory source;
Mon, 16 Jun 2008 17:54:38 +0200 deriv_tac/DERIV_tac: proper context;
wenzelm [Mon, 16 Jun 2008 17:54:38 +0200] rev 27227
deriv_tac/DERIV_tac: proper context;
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