Combining Philosophers

Ideas for Hermarchus, Cynthia Macdonald and Stewart Shapiro

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3 ideas

7. Existence / C. Structure of Existence / 2. Reduction

7944	Reduce by bridge laws (plus property identities?), by elimination, or by reducing talk [Macdonald,C]

7. Existence / C. Structure of Existence / 7. Abstract/Concrete / a. Abstract/concrete

10227

The abstract/concrete boundary now seems blurred, and would need a defence [Shapiro]

10226

Mathematicians regard arithmetic as concrete, and group theory as abstract [Shapiro]