3 ms·Use this lemma: If 1 <= a < b < c < d < 10 and b-a = d-c, then log(b) - log(a) > log(d) - log(c).by SamReidHughes 12y agoUse this lemma: If 1 <= a < b < c < d < 10 and b-a = d-c, then log(b) - log(a) > log(d) - log(c).