On the Ideas of Quine: Section 4
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@GeorgesBarras In addition, he (like most people) didn't like all identities are necessary in modal logic! That seems deeply wrong, na? Couldn't we imagine a world where Hesperus isn't Phosphorus?
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@GeorgesBarras He didn't like how you couldn't substitute equivalent names for the same things inside quantifiers without changing the truth value.
Ex: "Necessarily(8>5)" is true.
"the number of planets=8" is true.
But, "Necessarily(the number of planets>5)" is false (RIP Pluto).
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@lourak Excellent point.
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Can someone summarise for me Quine's views on modality?
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Quine accepts the definition of mathematics in terms of set theory but denies the reality of properties, but set theory cannot give a complete account of mathematics without appealing to second order logic, i.e. logic which appeals to properties as entities.
As with his rejection of reality of fundamental physical objects in order to assert the physicality of all reality he appears to get himself tied up in knots trying to defend an ultimately absurd position.
Interesting.
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@LiberalVichy I would argue that his fine exposition sets the problem is such high relief that those who follow him and study his ideas do not have any excuse to fall into the same trap.
In that he is a great philosopher.
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Quine's brilliance as a specialist, in his ability to dissect a philosophical problem is remarkable. As a general philosopher, however, dealing with classical concepts - there, he fails miserably and on close listening we see that he merely asserts a position.
1 year ago 2
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Perhaps Quine philosophical merit derives from the fact that he saw so much that was dubious or ghostly in Russell and Ayer, and proceeding not to make the same mistakes they did.
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For although words may be spoken eloquently, they may indeed be false, even injureous; and although they may come through stammering lips, they are not necessarily false. Quine is a great thinker who has resolved to "think exactly", no less than Russell or anyone else. He is attempting to build upon logical empiricism as a philosophical language. The way of speaking is not normal everyday language and so I think in translating his thoughts to words he faces some problems.
Jordenhauer 3 years ago 15
On a personal note, after watching so much Zizek, and coming back to Quine, despite his debatable views and terrible social skills this is a breath of fresh air.
genesisplan 2 years ago 9