Combining Philosophers

All the ideas for Charles Parsons, Richard Posner and Albert of Saxony

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13 ideas

4. Formal Logic / D. Modal Logic ML / 4. Alethic Modal Logic
9470 Modal logic is not an extensional language [Parsons,C]
4. Formal Logic / F. Set Theory ST / 4. Axioms for Sets / j. Axiom of Choice IX
13418 The old problems with the axiom of choice are probably better ascribed to the law of excluded middle [Parsons,C]
5. Theory of Logic / G. Quantification / 4. Substitutional Quantification
9469 Substitutional existential quantifier may explain the existence of linguistic entities [Parsons,C]
9468 On the substitutional interpretation, '(∃x) Fx' is true iff a closed term 't' makes Ft true [Parsons,C]
6. Mathematics / A. Nature of Mathematics / 4. Using Numbers / c. Counting procedure
17447 Parsons says counting is tagging as first, second, third..., and converting the last to a cardinal [Parsons,C, by Heck]
6. Mathematics / C. Sources of Mathematics / 4. Mathematical Empiricism / c. Against mathematical empiricism
18201 General principles can be obvious in mathematics, but bold speculations in empirical science [Parsons,C]
6. Mathematics / C. Sources of Mathematics / 8. Finitism
13419 If functions are transfinite objects, finitists can have no conception of them [Parsons,C]
7. Existence / A. Nature of Existence / 2. Types of Existence
16664 Everything that exists is either a substance or an accident [Albert of Saxony]
7. Existence / D. Theories of Reality / 11. Ontological Commitment / e. Ontological commitment problems
13417 If a mathematical structure is rejected from a physical theory, it retains its mathematical status [Parsons,C]
9. Objects / E. Objects over Time / 6. Successive Things
16703 God could make a successive thing so that previous parts cease to exist [Albert of Saxony]
16699 Successive entities just need parts to succeed one another, without their existence [Albert of Saxony]
24. Political Theory / D. Ideologies / 5. Democracy / a. Nature of democracy
21131 Democracy is competition for support of the people, guided by self-interest on all sides [Posner]
26. Natural Theory / A. Speculations on Nature / 6. Early Matter Theories / f. Ancient elements
16570 Elements are found last in dismantling bodies, and first in generating them [Albert of Saxony]