3425
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Reduction has been defined as deriving one theory from another by logic and maths [Nagel,E, by Kim]
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Full Idea:
Ernest Nagel defines reduction as the possibility of deriving all laws of one theory by logic and mathematics to another theory, with appropriate 'bridging principles' (either definitions, or empirical laws) connecting the expressions of the two theories.
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From:
report of Ernest Nagel (The Structure of Science [1961]) by Jaegwon Kim - Philosophy of Mind p.213
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A reaction:
This has been labelled as 'weak' reduction, where 'strong' reduction would be identity, as when lightning is reduced to electrical discharge. You reduce x by showing that it is y in disguise.
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16061
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If some facts 'logically supervene' on some others, they just redescribe them, adding nothing [Lynch/Glasgow]
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Full Idea:
Logical supervenience, restricted to individuals, seems to imply strong reduction. It is said that where the B-facts logically supervene on the A-facts, the B-facts simply re-describe what the A-facts describe, and the B-facts come along 'for free'.
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From:
Lynch,MP/Glasgow,JM (The Impossibility of Superdupervenience [2003], C)
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A reaction:
This seems to be taking 'logically' to mean 'analytically'. Presumably an entailment is logically supervenient on its premisses, and may therefore be very revealing, even if some people think such things are analytic.
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22602
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Over several centuries a set of eight main liberal values was established [Dunt]
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Full Idea:
Over the centuries liberal values were established: freedom of the individual, reason, consent in government, individual rights, the separation of powers, protection of minorities, autonomy, and moderation.
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From:
Ian Dunt (How to be a Liberal [2020], 13)
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A reaction:
What's not to like? 'Moderation' might be a sticking point, for anyone who thinks that very large social changes are needed.
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22596
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No government, or the whole nation, can control an individual beyond legitimate scope [Dunt]
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Full Idea:
When a government of any sort puts a threatening hand on that part of individual life beyond its proper scope, …even if it were the whole nation, except for the man it is harassing, it would be no more legitimate for that.
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From:
Ian Dunt (How to be a Liberal [2020]), quoted by Ian Dunt - How to be a Liberal 4
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A reaction:
The obvious question is what counts as 'proper scope' - and who gets to define it? If the individual can define that, then criminals can appeal to this principle. The state must be persuaded of it, then asked to stick to it during conflicts.
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22603
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Laissez-faire liberalism failed to give people the protections and freedoms needed for a good life [Dunt]
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Full Idea:
Laissez-faire liberalism failed, because it did not offer people protections and real freedom - against discrimination, insecure work, educational disadvantage, lack of social respect, absence of representation. It was cold, distant, and ineffective.
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From:
Ian Dunt (How to be a Liberal [2020], 13)
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A reaction:
A very nice summary, which I take to be correct.
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