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A comment on Calculus for Seven Year Olds [pdf]. Parent comment

Re:Calculus for Seven Year Olds [pdf] by OJFord on Friday June 11, 2021 @03:33AM (#27470347)
Erdós is described in Hoffman's biography ('The Man who Loved only Numbers') - I can't recall, nor immediately find by whom - as only being able to count up three numbers: '1, 2, n'.
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Re:Calculus for Seven Year Olds [pdf] by jimktrains2 on Friday June 11, 2021 @08:01AM (#27472146)
Reminds me of the "zero one infinity rule"[0] rule for programming. Roughly stated it says that software should be designed around 3 cases: 0/no instance of a situation, 1/single instance, or an infinite/limitless instances.

[0] https://en.m.wikipedia.org/wiki/Zero_one_infinity_rule

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