Talk:Proofs involving the addition of natural numbers
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Digitalr (talk) 23:32, 17 November 2007 (UTC)
Hello all,
I'm currently embroiled in a debate over the nature and validity of the associative property for natural numbers. In taking a look at the proof provided here, I'm unclear about the steps which cite justification as [A2]. I presume that it refers to Peano's second axiom, though I'm unsure about HOW the axiom justified the step.
Thanks!