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Finding an exponent?

• To: mathgroup at smc.vnet.net
• Subject: [mg112353] Finding an exponent?
• From: AES <siegman at stanford.edu>
• Date: Fri, 10 Sep 2010 04:50:17 -0400 (EDT)

Given  Exp[ expr ]  where   expr  is some complex expression in Standard 
form, how can I get  expr  itself in an Input cell?   (Preferably 
unevaluated, and other than using manual Copy and Paste).

Log[Exp[expr]] doesn't seem to do it.