Thu, 09 Nov 2006 00:43:12 +0100 added lemma mult_mono'
huffman [Thu, 09 Nov 2006 00:43:12 +0100] rev 21258
added lemma mult_mono'
(0) -10000 -3000 -1000 -300 -100 -30 -10 -1 +1 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip