Combining Philosophers

All the ideas for Zoroaster, Theophrastus and Palle Yourgrau

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10 ideas

6. Mathematics / A. Nature of Mathematics / 4. Using Numbers / c. Counting procedure
17818 How many? must first partition an aggregate into sets, and then logic fixes its number [Yourgrau]
17822 Nothing is 'intrinsically' numbered [Yourgrau]
6. Mathematics / B. Foundations for Mathematics / 5. Definitions of Number / c. Fregean numbers
17817 Defining 'three' as the principle of collection or property of threes explains set theory definitions [Yourgrau]
6. Mathematics / B. Foundations for Mathematics / 6. Mathematics as Set Theory / b. Mathematics is not set theory
17815 We can't use sets as foundations for mathematics if we must await results from the upper reaches [Yourgrau]
17821 You can ask all sorts of numerical questions about any one given set [Yourgrau]
13. Knowledge Criteria / E. Relativism / 6. Relativism Critique
20921 How can we state relativism of sweet and sour, if they have no determinate nature? [Theophrastus]
26. Natural Theory / A. Speculations on Nature / 2. Natural Purpose / c. Purpose denied
5990 Theophrastus doubted whether nature could be explained teleologically [Theophrastus, by Gottschalk]
29. Religion / B. Monotheistic Religion / 1. Monotheistic Religion
7598 Zoroaster and the Hebrew prophets evolved different versions of monotheism [Zoroaster, by Armstrong,K]
29. Religion / B. Monotheistic Religion / 3. Zoroastrianism
7472 Zarathustra was the first to present a god who is an abstract concept [Zoroaster]
20672 Zoroastrianism saw the world as a battle between good evil gods [Zoroaster, by Harari]