Thu, 29 Mar 2012 14:09:10 +0200 huffman move many lemmas from Nat_Numeral.thy to Power.thy or Num.thy
Thu, 29 Mar 2012 11:47:30 +0200 huffman bootstrap Num.thy before Power.thy;
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -2 +2 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip