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../ CaseTree.hsAdd mechanism for simplification and function options CoreParser.hsElaborating instance declarations Elaborate.hsGive invented pattern variables unique names Evaluate.hsAdd mechanism for simplification and function options ProofShell.hsAdded refine, focus, undo ProofState.hsBetter elaboration order; also changed instance argument syntax slightly ShellParser.hsTinkering with tactics and deferred definitions TT.hsMake sure patterns are in dependency order Typecheck.hsImproved where; implicit arguments now expanded during elaboration Unify.hsFix small elaboration bug