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Topic: Axiom or theorem?
Replies: 2   Last Post: Jun 17, 2014 2:12 PM

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Neighbor

Posts: 57
From: It doesn't matter
Registered: 1/26/14
Axiom or theorem?
Posted: Jun 14, 2014 2:46 PM
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Let a,m,k?Z+
Is it an axiom or a theorem that [a(m)]k=a[m(k)]
Since it is proved that ab=ba I suppose that the aforesaid proposition needs to be proved too, or maybe is it to be conceived as an axiom?

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