I wonder if philosophers have noticed that properties can be separated from objects in quantum mechanics, c.f. Cheshire Cat experiments?

Brent

On 5/30/2019 5:50 AM, Tomas Pales wrote:

On Wednesday, May 29, 2019 at 10:15:46 PM UTC+2, Jason wrote:

    Appears to predict the arithmetical reality:

    "There exists, unless I am mistake, an entire world consisting of
    the totality of mathematical truths, which is accessible to us
    only through our intelligence, just as there exists the world of
    physical realities; each one is independent of us, both of them
    divinely created and appear different only because of the weakness
    of our mind; but, for a more powerful intelligence, they are one
    and the same thing, whose synthesis is partially revealed in that
    marvelous correspondence between abstract mathematics on the one
    hand and astronomy and all branches of physics on the other."

    
https://monoskop.org/images/a/aa/Kurt_G%C3%B6del_Collected_Works_Volume_III_1995.pdf
    
<https://monoskop.org/images/a/aa/Kurt_G%C3%B6del_Collected_Works_Volume_III_1995.pdf>
 on
    page 323.

    Jason


In philosophy, the relation between abstract and concrete objects is called "instantiation", for example between the abstract triangle and concrete triangles. It is a relation whereby the abstract object is a property of the concrete objects and the concrete objects are instances of the abstract object. The instantation relation is regarded as primitive, similarly like the composition relation between a collection of objects and the objects in the collection. The instantiation relation may appear more mysterious though, because while it is quite easy to visualize a collection, it is impossible to visualize an abstract object.

Abstract and concrete objects are existentially dependent on each other, because there can be no property without an object that has the property, and there can be no object that has no property.

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