Combining Texts

All the ideas for 'Mahaprajnaparamitashastra', 'Counterfactual Dependence and Time's Arrow' and 'Review of Tait 'Provenance of Pure Reason''

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5 ideas

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]
	Full Idea: The difficulties historically attributed to the axiom of choice are probably better ascribed to the law of excluded middle.
	From: Charles Parsons (Review of Tait 'Provenance of Pure Reason' [2009], §2)
	A reaction: The law of excluded middle was a target for the intuitionists, so presumably the debate went off in that direction.

6. Mathematics / C. Sources of Mathematics / 8. Finitism

13419	If functions are transfinite objects, finitists can have no conception of them [Parsons,C]
	Full Idea: The finitist may have no conception of function, because functions are transfinite objects.
	From: Charles Parsons (Review of Tait 'Provenance of Pure Reason' [2009], §4)
	A reaction: He is offering a view of Tait's. Above my pay scale, but it sounds like a powerful objection to the finitist view. Maybe there is a finitist account of functions that could be given?

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]
	Full Idea: If experience shows that some aspect of the physical world fails to instantiate a certain mathematical structure, one will modify the theory by sustituting a different structure, while the original structure doesn't lose its status as part of mathematics.
	From: Charles Parsons (Review of Tait 'Provenance of Pure Reason' [2009], §2)
	A reaction: This seems to be a beautifully simple and powerful objection to the Quinean idea that mathematics somehow only gets its authority from physics. It looked like a daft view to begin with, of course.

23. Ethics / C. Virtue Theory / 3. Virtues / a. Virtues

7903	The six perfections are giving, morality, patience, vigour, meditation, and wisdom [Nagarjuna]
	Full Idea: The six perfections are of giving, morality, patience, vigour, meditation, and wisdom.
	From: Nagarjuna (Mahaprajnaparamitashastra [c.120], 88)
	A reaction: What is 'morality', if giving is not part of it? I like patience and vigour being two of the virtues, which immediately implies an Aristotelian mean (which is always what is 'appropriate').

26. Natural Theory / C. Causation / 5. Direction of causation

8433	There are few traces of an event before it happens, but many afterwards [Lewis, by Horwich]
	Full Idea: Lewis claims that most events are over-determined by subsequent states of the world, but not by their history. That is, the future of every event contains many independent traces of its occurrence, with little prior indication that it would happen.
	From: report of David Lewis (Counterfactual Dependence and Time's Arrow [1979]) by Paul Horwich - Lewis's Programme p.209
	A reaction: Lewis uses this asymmetry to deduce the direction of causation, and hence the direction of time. Most people (including me, I think) would prefer to use the axiomatic direction of time to deduce directions of causation. Lewis was very wicked.