Combining Philosophers

Ideas for Aristotle, Critias and J.G. Hamann

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24 ideas

6. Mathematics / A. Nature of Mathematics / 1. Mathematics
Mathematics is concerned with forms, not with superficial properties [Aristotle]
Mathematical precision is only possible in immaterial things [Aristotle]
Mathematics studies the domain of perceptible entities, but its subject-matter is not perceptible [Aristotle]
6. Mathematics / A. Nature of Mathematics / 2. Geometry
Geometry studies naturally occurring lines, but not as they occur in nature [Aristotle]
The essence of a triangle comes from the line, mentioned in any account of triangles [Aristotle]
6. Mathematics / A. Nature of Mathematics / 3. Nature of Numbers / a. Numbers
Perhaps numbers are substances? [Aristotle]
We perceive number by the denial of continuity [Aristotle]
Pluralities divide into discontinous countables; magnitudes divide into continuous things [Aristotle]
6. Mathematics / A. Nature of Mathematics / 3. Nature of Numbers / c. Priority of numbers
One is prior to two, because its existence is implied by two [Aristotle]
6. Mathematics / A. Nature of Mathematics / 3. Nature of Numbers / g. Real numbers
Two is the least number, but there is no least magnitude, because it is always divisible [Aristotle]
Parts of a line join at a point, so it is continuous [Aristotle]
6. Mathematics / A. Nature of Mathematics / 3. Nature of Numbers / m. One
The one in number just is the particular [Aristotle]
6. Mathematics / A. Nature of Mathematics / 4. Using Numbers / a. Units
A unit is what is quantitatively indivisible [Aristotle]
Units came about when the unequals were equalised [Aristotle]
The unit is stipulated to be indivisible [Aristotle]
Unit is the starting point of number [Aristotle]
If only rectilinear figures existed, then unity would be the triangle [Aristotle]
6. Mathematics / A. Nature of Mathematics / 4. Using Numbers / c. Counting procedure
Two men do not make one thing, as well as themselves [Aristotle]
When we count, are we adding, or naming numbers? [Aristotle]
6. Mathematics / A. Nature of Mathematics / 5. The Infinite / a. The Infinite
Without infinity time has limits, magnitudes are indivisible, and numbers come to an end [Aristotle]
6. Mathematics / A. Nature of Mathematics / 5. The Infinite / c. Potential infinite
Aristotle's infinity is a property of the counting process, that it has no natural limit [Aristotle, by Le Poidevin]
Infinity is only potential, never actual [Aristotle]
6. Mathematics / A. Nature of Mathematics / 5. The Infinite / j. Infinite divisibility
Lengths do not contain infinite parts; parts are created by acts of division [Aristotle, by Le Poidevin]
A continuous line cannot be composed of indivisible points [Aristotle]