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Single Idea 17850

[filed under theme 6. Mathematics / B. Foundations for Mathematics / 5. Definitions of Number / b. Greek arithmetic ]

Full Idea

The reason for saying of each number that it is many is just that it is ones and that each number is measured by the one.

Gist of Idea

Each many is just ones, and is measured by the one

Source

Aristotle (Metaphysics [c.324 BCE], 1056b16)

Book Ref

Aristotle: 'Metaphysics', ed/tr. Lawson-Tancred,Hugh [Penguin 1998], p.304


The 10 ideas with the same theme [basic principles of arithmetic according to the early Greeks]:

Some quantities are discrete, like number, and others continuous, like lines, time and space [Aristotle]
The idea of 'one' is the foundation of number [Aristotle]
Each many is just ones, and is measured by the one [Aristotle]
Number is plurality measured by unity [Aristotle]
Euclid's common notions or axioms are what we must have if we are to learn anything at all [Euclid, by Roochnik]
A number is not a multitude, but a unified ratio between quantities [Newton]
Arithmetic is based on definitions, and Sums of equals are equal, and Differences of equals are equal [Mill]
Numbers were once defined on the basis of 1, but neglected infinities and + [Russell]
Mathematics originally concerned the continuous (geometry) and the discrete (arithmetic) [Shapiro]
Greek mathematics is wholly sensory, where ours is wholly inferential [Macbeth]