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How to get rid of If[ ... ] in a result

• To: mathgroup at smc.vnet.net
• Subject: [mg65149] How to get rid of If[ ... ] in a result
• From: "hanspi" <hanspi at schmid-werren.ch>
• Date: Wed, 15 Mar 2006 23:59:23 -0500 (EST)
• Sender: owner-wri-mathgroup at wolfram.com

Dear Mathematica users,

I often get results like the following when I do symbolic sums, in this
case of a Sin[ ... ]:

... ... ... If[2/T Element Integers, x, y] ... ...

Now I know that 2/T is an Integer. How can I tell Mathematica that this
is so, such that it removes the 'If'? It seems that Assumptions don't
work for sums.

Kind regards,
Hanspeter