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Re: (x|y) \[element] Integers in Reduce function

  • To: mathgroup at smc.vnet.net
  • Subject: [mg82646] Re: (x|y) \[element] Integers in Reduce function
  • From: Jean-Marc Gulliet <jeanmarc.gulliet at gmail.com>
  • Date: Sat, 27 Oct 2007 05:59:56 -0400 (EDT)
  • Organization: The Open University, Milton Keynes, UK
  • References: <ffsbo2$mb0$1@smc.vnet.net>

Bhuvanesh wrote:
> Jean-Marc Gulliet wrote:
> 
>> The correct answer is (b).
> 
> Actually, the answer is (a): Element[x|y,domain] means that both x and y are elements of the specified domain.
> 
> In[1]:= Reduce[Element[x|y, Integers]]
> 
> Out[1]= x \[Element] Integers && y \[Element] Integers
> 
> In[2]:= Element[Sqrt[2]|E, Algebraics]
> 
> Out[2]= False
> 
> In[3]:= Element[#, Algebraics]& /@ {Sqrt[2], E}
> 
> Out[3]= {True, False}
> 
> Bhuvanesh,
> Wolfram Research
> 

Thank you for the clarification (I realized that I was really confused).

Best regards,
--
Jean-Marc


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