Combining Philosophers

All the ideas for Herodotus, Augustus De Morgan and Nicole Oresme

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6 ideas

5. Theory of Logic / E. Structures of Logic / 6. Relations in Logic
De Morgan started the study of relations and their properties [De Morgan, by Walicki]
De Morgan found inferences involving relations, which eluded Aristotle's syllogistic [De Morgan, by Hart,WD]
5. Theory of Logic / G. Quantification / 2. Domain of Quantification
De Morgan introduced a 'universe of discourse', to replace Boole's universe of 'all things' [De Morgan, by Walicki]
8. Modes of Existence / B. Properties / 9. Qualities
Whiteness isn't created in an alteration, because it is just this-being-white [Oresme]
9. Objects / E. Objects over Time / 6. Successive Things
Successive entities are in flux, flowing in existence, with different parts at different times [Oresme]
29. Religion / D. Religious Issues / 2. Immortality / a. Immortality
The Egyptians were the first to say the soul is immortal and reincarnated [Herodotus]