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ReplaceAll on Nested Expressions

• To: mathgroup at smc.vnet.net
• Subject: [mg92931] ReplaceAll on Nested Expressions
• From: "David Park" <djmpark at comcast.net>
• Date: Mon, 20 Oct 2008 07:33:43 -0400 (EDT)

Here is an attempted replacement:

foo[foo[a, b], c] /. foo[a_, b_] :> foo[a, h[b]]
foo[foo[a, b], h[c]]

How could I write a rule, or what method would I use so that the inner 
foo[a,b] is also replaced?

foo[foo[a, h[b]], h[c]]

-- 
David Park
djmpark at comcast.net
http://home.comcast.net/~djmpark/