Timeline for Why Does Induction Prove Multiplication is Commutative?
Current License: CC BY-SA 3.0
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| Dec 11, 2016 at 19:38 | comment | added | gowrath | Is there any way to prove this in PA without having proven associativity of addition? I tried doing this with just commutativity of addition and the axioms but unfortunately got stuck at the point in your proof where you invoke associativity of addition. I get the that I can just prove this as a lemma but was just curious if it were possible without it. Thank you! | |
| Feb 17, 2013 at 4:23 | history | answered | Joel David Hamkins | CC BY-SA 3.0 |