Simplify Log[ab] - Log[b] to Log[a] ?

*To*: mathgroup at smc.vnet.net*Subject*: [mg16039] Simplify Log[ab] - Log[b] to Log[a] ?*From*: "Simon Allfrey" <simon at allfrey13.freeserve.co.uk>*Date*: Sun, 21 Feb 1999 00:15:16 -0500*Organization*: Customer of Planet Online*Sender*: owner-wri-mathgroup at wolfram.com

How do I persuade Mathematica to simplify Log[a b] - Log[b] to Log[a]? when processing algebraic expressions?

**Follow-Ups**:**Re: Simplify Log[ab] - Log[b] to Log[a] ?***From:*Jurgen Tischer <jtischer@col2.telecom.com.co>