Combining Philosophers

All the ideas for Hermarchus, R Keefe / P Smith and C.B. Martin

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46 ideas

1. Philosophy / E. Nature of Metaphysics / 4. Metaphysics as Science
Ontology is highly abstract physics, containing placeholders and exclusions [Martin,CB]
3. Truth / A. Truth Problems / 1. Truth
Truth is a relation between a representation ('bearer') and part of the world ('truthmaker') [Martin,CB]
4. Formal Logic / D. Modal Logic ML / 3. Modal Logic Systems / h. System S5
S5 collapses iterated modalities (◊□P→□P, and ◊◊P→◊P) [Keefe/Smith]
7. Existence / D. Theories of Reality / 10. Vagueness / b. Vagueness of reality
Objects such as a cloud or Mount Everest seem to have fuzzy boundaries in nature [Keefe/Smith]
7. Existence / D. Theories of Reality / 10. Vagueness / c. Vagueness as ignorance
If someone is borderline tall, no further information is likely to resolve the question [Keefe/Smith]
The simplest approach, that vagueness is just ignorance, retains classical logic and semantics [Keefe/Smith]
The epistemic view of vagueness must explain why we don't know the predicate boundary [Keefe/Smith]
7. Existence / D. Theories of Reality / 10. Vagueness / f. Supervaluation for vagueness
Supervaluationism keeps true-or-false where precision can be produced, but not otherwise [Keefe/Smith]
Vague statements lack truth value if attempts to make them precise fail [Keefe/Smith]
Some of the principles of classical logic still fail with supervaluationism [Keefe/Smith]
The semantics of supervaluation (e.g. disjunction and quantification) is not classical [Keefe/Smith]
Supervaluation misunderstands vagueness, treating it as a failure to make things precise [Keefe/Smith]
7. Existence / D. Theories of Reality / 10. Vagueness / g. Degrees of vagueness
A third truth-value at borderlines might be 'indeterminate', or a value somewhere between 0 and 1 [Keefe/Smith]
People can't be placed in a precise order according to how 'nice' they are [Keefe/Smith]
If truth-values for vagueness range from 0 to 1, there must be someone who is 'completely tall' [Keefe/Smith]
How do we decide if my coat is red to degree 0.322 or 0.321? [Keefe/Smith]
8. Modes of Existence / B. Properties / 9. Qualities
A property is a combination of a disposition and a quality [Martin,CB]
8. Modes of Existence / B. Properties / 11. Properties as Sets
Properties are the respects in which objects resemble, which places them in classes [Martin,CB]
8. Modes of Existence / B. Properties / 13. Tropes / a. Nature of tropes
Properties are ways particular things are, and so they are tied to the identity of their possessor [Martin,CB]
8. Modes of Existence / B. Properties / 13. Tropes / b. Critique of tropes
Objects are not bundles of tropes (which are ways things are, not parts of things) [Martin,CB]
8. Modes of Existence / C. Powers and Dispositions / 1. Powers
A property that cannot interact is worse than inert - it isn't there at all [Martin,CB]
8. Modes of Existence / C. Powers and Dispositions / 2. Powers as Basic
If unmanifested partnerless dispositions are still real, and are not just qualities, they can explain properties [Martin,CB]
8. Modes of Existence / C. Powers and Dispositions / 5. Powers and Properties
Properties endow a ball with qualities, and with powers or dispositions [Martin,CB]
Qualities and dispositions are aspects of properties - what it exhibits, and what it does [Martin,CB]
8. Modes of Existence / C. Powers and Dispositions / 6. Dispositions / a. Dispositions
Dispositions in action can be destroyed, be recovered, or remain unchanged [Martin,CB]
8. Modes of Existence / C. Powers and Dispositions / 6. Dispositions / c. Dispositions as conditional
Powers depend on circumstances, so can't be given a conditional analysis [Martin,CB]
'The wire is live' can't be analysed as a conditional, because a wire can change its powers [Martin,CB]
9. Objects / B. Unity of Objects / 3. Unity Problems / e. Vague objects
Vague predicates involve uncertain properties, uncertain objects, and paradoxes of gradual change [Keefe/Smith]
Many vague predicates are multi-dimensional; 'big' involves height and volume; heaps include arrangement [Keefe/Smith]
If there is a precise borderline area, that is not a case of vagueness [Keefe/Smith]
9. Objects / C. Structure of Objects / 1. Structure of an Object
Structures don't explain dispositions, because they consist of dispositions [Martin,CB]
Structural properties involve dispositionality, so cannot be used to explain it [Martin,CB]
9. Objects / C. Structure of Objects / 7. Substratum
I favour the idea of a substratum for properties; spacetime seems to be just a bearer of properties [Martin,CB]
9. Objects / C. Structure of Objects / 8. Parts of Objects / c. Wholes from parts
Properly understood, wholes do no more causal work than their parts [Martin,CB]
9. Objects / F. Identity among Objects / 1. Concept of Identity
Only abstract things can have specific and full identity specifications [Martin,CB]
The concept of 'identity' must allow for some changes in properties or parts [Martin,CB]
10. Modality / E. Possible worlds / 1. Possible Worlds / c. Possible worlds realism
It is pointless to say possible worlds are truthmakers, and then deny that possible worlds exist [Martin,CB]
14. Science / D. Explanation / 4. Explanation Doubts / a. Explanation as pragmatic
Explanations are mind-dependent, theory-laden, and interest-relative [Martin,CB]
15. Nature of Minds / A. Nature of Mind / 4. Other Minds / d. Other minds by analogy
Analogy works, as when we eat food which others seem to be relishing [Martin,CB]
15. Nature of Minds / C. Capacities of Minds / 3. Abstraction by mind
Memory requires abstraction, as reminders of what cannot be fully remembered [Martin,CB]
25. Social Practice / F. Life Issues / 6. Animal Rights
Animals are dangerous and nourishing, and can't form contracts of justice [Hermarchus, by Sedley]
26. Natural Theory / C. Causation / 8. Particular Causation / b. Causal relata
Instead of a cause followed by an effect, we have dispositions in reciprocal manifestation [Martin,CB]
Causation should be explained in terms of dispositions and manifestations [Martin,CB]
26. Natural Theory / C. Causation / 9. General Causation / c. Counterfactual causation
Causal counterfactuals are just clumsy linguistic attempts to indicate dispositions [Martin,CB]
26. Natural Theory / D. Laws of Nature / 8. Scientific Essentialism / c. Essence and laws
Causal laws are summaries of powers [Martin,CB]
27. Natural Reality / C. Space / 6. Space-Time
We can't think of space-time as empty and propertyless, and it seems to be a substratum [Martin,CB]