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