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Topic: Need help deriving Peano Axioms from the reals
Replies: 7   Last Post: May 31, 2012 12:12 PM

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David Hartley

Posts: 463
Registered: 12/13/04
Re: Need help deriving Peano Axioms from the reals
Posted: May 31, 2012 8:47 AM
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In message <877gvtrr58.fsf@phiwumbda.org>, Jesse F. Hughes
<jesse@phiwumbda.org> writes
>> Show that {x e n | x >= 1} is inductive.
>Perhaps you mean {x e N | s(x) >= 1} is inductive?

Dan is using the version of the Peano Axioms where the least element is
1, and he uses n for the set he's trying to show satisfies those axioms.
David Hartley

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