Attic/UnusedQuotMain.thy
author Cezary Kaliszyk <kaliszyk@in.tum.de>
Mon, 19 Dec 2011 16:39:20 +0900
changeset 3078 abf147627b4b
parent 2871 b58073719b06
permissions -rw-r--r--
Retry Beta using a reduction relation and its reflexive-symmetric-transitive closure.

(* Could go in the programming tutorial *)

ML_prf {* val qtm = #concl (fst (Subgoal.focus @{context} 1 (#goal (Isar.goal ())))) *}