Wed, 02 Aug 2006 22:27:03 +0200 simplified Assumption/ProofContext.export;
wenzelm [Wed, 02 Aug 2006 22:27:03 +0200] rev 20309
simplified Assumption/ProofContext.export; simplified end_block;
Wed, 02 Aug 2006 22:27:02 +0200 added tactical result;
wenzelm [Wed, 02 Aug 2006 22:27:02 +0200] rev 20308
added tactical result; simplified obtain_export: no Seq.seq, no lifting of result prems; tuned;
Wed, 02 Aug 2006 22:27:01 +0200 removed obsolete Drule.frees/vars_of etc.;
wenzelm [Wed, 02 Aug 2006 22:27:01 +0200] rev 20307
removed obsolete Drule.frees/vars_of etc.; simplified Assumption/ProofContext.export;
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