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Re: Simplify with NestedLessLess?

• To: mathgroup at smc.vnet.net
• Subject: [mg106520] Re: Simplify with NestedLessLess?
• From: Dave Bird <dbird at ieee.org>
• Date: Fri, 15 Jan 2010 03:19:05 -0500 (EST)
• References: <himsqd$jd0$1@smc.vnet.net> <4B4F126E.4010304@metrohm.com>
• Reply-to: dbird at ieee.org

Thanks Daniel for the info.

How does one "design a new operator" which Simplify could use as an 
assumption. I'm a Mathematica newby, so please excuse my ignorance.

Thanks again,

Dave

dh wrote:
> Hi Dave,
> << does not have a meaning in mathematica. It is only a symbol. 
> Therefore your expression is not simplified.
> You may define a new operator for your purposes.
> Daniel
>
> dbird wrote:
>> Please excuse if this has been answered before, but I can't find it.
>>
>> Is there some way to do a Simplify with assumptions using a 
>> NestedLessLess or something similar? For example:
>>
>> d=a+b
>> Simplify[d,NestedLessLess[a,b]]
>>
>> Answer is:
>> a+b
>>
>> Answer should be:
>> b
>>
>> Thanks,
>>
>> Dave
>>
>
>
>