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Topic: Simplify puzzle
Replies: 3   Last Post: Feb 12, 2012 5:09 AM

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Alan

Posts: 95
Registered: 3/29/11
Simplify puzzle
Posted: Jan 27, 2012 6:14 AM
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Why does the first simplification below fail?
(Each term succeeds!)
Thanks,
Alan Isaac

In[205]:=
myassumptions = a > 0 && b > 0 && c > 0 && 1 > d > 0 && 1 > e > 0;
Simplify[a*b + c*(1 - d*(1 - e)) > 0, Assumptions -> myassumptions]
Simplify[a*b > 0, Assumptions -> myassumptions]
Simplify[c*(1 - d*(1 - e)) > 0, Assumptions -> myassumptions]

Out[206]= a b + c + c d e > c d

Out[207]= True

Out[208]= True




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