Combining Texts

All the ideas for 'Philosophy of Mathematics', 'works' and 'Brandom on Social Practices and Representations'

unexpand these ideas     |    start again     |     specify just one area for these texts


6 ideas

1. Philosophy / D. Nature of Philosophy / 7. Despair over Philosophy
If we can't check our language against experience, philosophy is just comparing beliefs and words [Rorty]
     Full Idea: If we cannot check our language against non-linguistic awareness, then philosophy can never be more than a discussion of the utility and compatibility of beliefs - and, more particularly, of the various vocabularies in which those beliefs are formulated.
     From: Richard Rorty (Brandom on Social Practices and Representations [1998], iii.127), quoted by Danielle Macbeth - Pragmatism and Objective Truth p.178
     A reaction: I'm amazed at how many people I encounter in philosophy circles (compared with none at all outside those circles) who seem to think that we cannot check our language against our non-linguistic awareness. Rorty is their guru. Weird.
2. Reason / D. Definition / 8. Impredicative Definition
Predicative definitions only refer to entities outside the defined collection [Horsten]
     Full Idea: Definitions are called 'predicative', and are considered sound, if they only refer to entities which exist independently from the defined collection.
     From: Leon Horsten (Philosophy of Mathematics [2007], §2.4)
5. Theory of Logic / J. Model Theory in Logic / 2. Isomorphisms
A theory is 'categorical' if it has just one model up to isomorphism [Horsten]
     Full Idea: If a theory has, up to isomorphism, exactly one model, then it is said to be 'categorical'.
     From: Leon Horsten (Philosophy of Mathematics [2007], §5.2)
6. Mathematics / B. Foundations for Mathematics / 2. Proof in Mathematics
Computer proofs don't provide explanations [Horsten]
     Full Idea: Mathematicians are uncomfortable with computerised proofs because a 'good' proof should do more than convince us that a certain statement is true. It should also explain why the statement in question holds.
     From: Leon Horsten (Philosophy of Mathematics [2007], §5.3)
6. Mathematics / B. Foundations for Mathematics / 6. Mathematics as Set Theory / a. Mathematics is set theory
The concept of 'ordinal number' is set-theoretic, not arithmetical [Horsten]
     Full Idea: The notion of an ordinal number is a set-theoretic, and hence non-arithmetical, concept.
     From: Leon Horsten (Philosophy of Mathematics [2007], §2.3)
24. Political Theory / D. Ideologies / 8. Socialism
The great interest of the human race is cordial unity and unlimited mutual aid [Owen]
     Full Idea: It is the one great and universal interest of the human race to be cordially united, and to aid each other to the full extent of their capacities.
     From: Robert Owen (works [1830]), quoted by John H. Muirhead - The Service of the State IV
     A reaction: [Inscribed on his tomb in Newport, Shropshire] In the middle of the early industrial revolution, Owen worked hard for the rights of the people who worked in his factory.