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Topic: Re: 13 is not prime!
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Alex Scheitlin

Posts: 3
Registered: 12/11/04
Re: 13 is not prime!
Posted: Aug 16, 1996 3:02 AM
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The following shows why:
In[] Trace[PrimeQ[p]/.p->13]
Out[] {{PrimeQ[p], False}, False /. p -> 13, False}

Felix Holderied <felix@ira.uka.de> wrote in article
> Please help me:
> In[]:=
> PrimeQ[13]
> Out[]=
> True
> In[]:=
> PrimeQ[p] /.{p->13}
> Out[]=
> False
> WHY?

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