HARDY 发表于 2025-3-21 16:14:34

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陈腐的人 发表于 2025-3-21 23:03:07

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Trabeculoplasty 发表于 2025-3-22 09:05:46

The real numbers, in the first place? In real life, we are never able to measure any quantity (e. g. length or temperature) to more than a few decimal places, for which the rational numbers suffice. Indeed, the rational numbers suffice for the measurement of any quantity to .. This fact is illustrated by the following simple result.

Platelet 发表于 2025-3-22 14:39:42

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带子 发表于 2025-3-22 18:16:01

https://doi.org/10.1007/978-1-4899-2967-9Calc; calculus; complex number; derivative; differential calculus; function; functions; language; mathematic

ventilate 发表于 2025-3-22 23:19:43

Sets and functions,or instance we have:.So long as we have some way of specifying the collection, then we say it is a .. Our last example above has already made use of the notion of ‘membership’. If . is a set, then the members of the collection . are called either the . of . or the . of .. (With a concept as simple a

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查看完整版本: Titlebook: Sets, Functions and Logic; Basic concepts of un Keith J. Devlin Book 1981 K. J. Devlin 1981 Calc.calculus.complex number.derivative.differe