Combining Texts

All the ideas for 'Mahaprajnaparamitashastra', 'works' and 'On the Syllogism IV'

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5 ideas

5. Theory of Logic / E. Structures of Logic / 6. Relations in Logic

17744	De Morgan started the study of relations and their properties [De Morgan, by Walicki]
	Full Idea: De Morgan started the sustained interest in the study of relations and their properties.
	From: report of Augustus De Morgan (On the Syllogism IV [1859]) by Michal Walicki - Introduction to Mathematical Logic History D.1.1

13501	De Morgan found inferences involving relations, which eluded Aristotle's syllogistic [De Morgan, by Hart,WD]
	Full Idea: There was a prejudice against relations (in favour of properties) but De Morgan and others that impeccable inferences turn on relations and elude Aristotle's syllogistic. Thus: All horses are animals. Hence, all heads of horses are heads of animals.
	From: report of Augustus De Morgan (On the Syllogism IV [1859]) by William D. Hart - The Evolution of Logic 4
	A reaction: This is actually an early example of modern analytic philosophy in action. You start with the inferences, and then work back to the ontology and the definition of concepts. But in pinning down such concepts, do we miss their full meaning?

6. Mathematics / C. Sources of Mathematics / 6. Logicism / b. Type theory

6409	The 'simple theory of types' distinguishes levels among properties [Ramsey, by Grayling]
	Full Idea: The idea that there should be something like a distinction of levels among properties is captured in Ramsey's 'simple theory of types'.
	From: report of Frank P. Ramsey (works [1928]) by A.C. Grayling - Russell
	A reaction: I merely report this, though it is not immediately obvious how anyone would decide which 'level' a type belonged on.

11. Knowledge Aims / A. Knowledge / 4. Belief / c. Aim of beliefs

3212	Beliefs are maps by which we steer [Ramsey]
	Full Idea: Beliefs are maps by which we steer.
	From: Frank P. Ramsey (works [1928]), quoted by Georges Rey - Contemporary Philosophy of Mind p.259 n5

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').