Combining Philosophers

Ideas for Hermarchus, Michael Stanford and Alvin Plantinga

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2 ideas

18. Thought / E. Abstraction / 1. Abstract Thought
The idea of abstract objects is not ontological; it comes from the epistemological idea of abstraction [Plantinga]
     Full Idea: The notion of an abstract object comes from the notion of abstraction; it is in origin an epistemological rather than an ontological category.
     From: Alvin Plantinga (Why Propositions cannot be concrete [1993], p.232)
     A reaction: Etymology doesn't prove anything. However, if you define abstract objects as not existing in space or time, you must recognise that this may only be because that is how humans imaginatively created them in the first place.
Theists may see abstract objects as really divine thoughts [Plantinga]
     Full Idea: Theists may find attractive a view popular among medieval philosophers from Augustine on: that abstract objects are really divine thoughts. More exactly, propositions are divine thoughts, properties divine concepts, and sets divine collections.
     From: Alvin Plantinga (Why Propositions cannot be concrete [1993], p.233)
     A reaction: Hm. I pass this on because we should be aware that there is a theological history to discussions of abstract objects, and some people have vested interests in keeping them outside of the natural world. Aren't properties natural? Does God gerrymander sets?