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On 21.02.2025 20:40, Jim Burns wrote:You mean "natural numbers" here I suspect. FISONs are, in effect, identified with those "natural numbers".
>However,>
all sets Z which satisfy Infinityᶻᶠᶜ
HAVE A SUBSET which
is usable in a proof.by.inductionᶻᶠᶜ
Zermelo calls that set Z_0 or set of numbers. We can remove all numbers from Z_0 and produce the empty set.
>
Homework: Show the same for the set of FISONs.
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