Combining Texts

All the ideas for 'Mahaprajnaparamitashastra', 'On Euclidean Geometry' and 'Identity through Possible Worlds'

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4 ideas

5. Theory of Logic / K. Features of Logics / 1. Axiomatisation

16886	The truth of an axiom must be independently recognisable [Frege]
	Full Idea: It is part of the concept of an axiom that it can be recognised as true independently of other truths.
	From: Gottlob Frege (On Euclidean Geometry [1900], 183/168), quoted by Tyler Burge - Frege on Knowing the Foundations 4
	A reaction: Frege thinks the axioms of arithmetic all reside in logic.

9. Objects / D. Essence of Objects / 14. Knowledge of Essences

11966	If there are essential properties, how do you find out what they are? [Chisholm]
	Full Idea: It seems to me that if Adam does have essential properties, there is no procedure at all for finding out what they are.
	From: Roderick Chisholm (Identity through Possible Worlds [1967], p.85)
	A reaction: My tentative suggestion is that the essential properties are those which explain the nature, power, function and role of Adam in the 'actual' world. Whatever possibilities he acquires, he had better retain the capacity to be the First Man.

10. Modality / E. Possible worlds / 3. Transworld Objects / a. Transworld identity

11965	Could possible Adam gradually transform into Noah, and vice versa? [Chisholm]
	Full Idea: If Adam lived for 931 years in a possible world, instead of his actual 930 years, ..then Adam and Noah could gradually exchange their ages and other properties...and we could trace Adam in a world back to the actual Noah, and vice versa.
	From: Roderick Chisholm (Identity through Possible Worlds [1967], p.81-2)
	A reaction: [very compressed] Chisholm was one of the first to raise this problem for possible worlds, though it had been Quine's objection to modal logic all along. Only Adam having essential properties seems to stop this slippery slope, says Chisholm.

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').