src/Sequents/LK/ROOT.ML

remove redundant lemma setsum_norm in favor of norm_setsum;
remove finiteness assumption from setsum_norm_le;

(*  Title:      Sequents/LK/ROOT.ML
    Author:     Lawrence C Paulson, Cambridge University Computer Laboratory
    Copyright   1992  University of Cambridge

Examples for Classical Logic.
*)

use_thys ["Propositional", "Quantifiers", "Hard_Quantifiers", "Nat"];