It still doesn't imply some sort of substance. Unless you're using the word in a different way than the rest of us are.
IchneumonWasp
I echo the compliment about your posts. I was going to say so a way back, but then there are so many other posters here and the whole thread has been very interesting, so it might not be fair!!
Substance refers to that which exists. That is its definition and use withing philosophy. You can argue over what you think is most fundamental, but you can't doubt substance because the doubting proves that something exists from the cogito.
Saying there is no substance means there is no existence. It literally means 'nothing exists'. Why do I have to keep repeating this?
No. ACTION refers to that which exists. We've been through this, and the only thing you have been able to do is nay-say it.
So let me be clear, I am not claiming that the concept of numbers has an existance independent of ourselves, only that it seems as if they do. If that appearance is an accurate reflection of reality, then it seems to me that materialism must be false as it is not capable of explaining the existance of non-physical things independent of the physical beings thinking about them. If the independent existance of numbers is considered an illusion rather than reality, then materialism can explain what we observe.
How does action refer to that which exists? Actions can only occur if something exists to perform the action. The action of doubting certainly demonstrates that something that thinks exists, otherwise doubting couldn't occur. But even if you take that to be the case, that actions are primary, it doesn't change a whit of what has been discussed. In materialism that would make quarks an action and thinking brains would be actions based in quark action.
Because you provide no proof. Bellman tactics do not work here.
i thought we were discussing matter. How can matter doubt? Elementary particles carry out actions all the time but do not go around doubting.
Something exists. Why can't it be an infinite regress?
How can an infinite regress be a something? And if you want to say that it's an infinite regress, that is your answer to the most fundamental -- that it's an infinite regress. But that doesn't change this argument in any way shape or form. It just means you rely on an infinite regress. You can call it an infinite regress of matter, or of mind, whatever.
But an infinite regress doesn't make sense.
I'm not saying that it is an infinite regress. I just want to know how you know it. Lot's of things don't make sense. My own viewpoint is that strings are at the bottom of it but that will be very hard to prove.
What is the problem with strings and space-time? I speak as an interested layman.
We are complete agreement here. I want to make sure we are discussing the same thing, because it's easy to become confused when discussing intangibles and the symbols that we use to represent them. I’m not talking about the symbol representing 5 being an intangible object. I’m talking about the concept that is being represented by the symbol. That is, I’m referring to the ‘object’ that the symbols 5, five, and V all refer to. I agree that the symbol representing 'five' has no meaning outside of minds to interpret it. Likewise, the word 'tree' has no meaning outside of human minds interpreting it. We agree that trees exist independent of the symbols we use to represent them and human minds thinking of them. Apparently we disagree regarding whether numbers also have an independent existence.
I don’t think a mechanism need be established; examples of such interactions would suffice. It seems to me that this is simply an extrapolation of the starting assumption of monism, not a conceptual error on the part of dualists.
Can we actually do this? That's pretty cool if it's true. But it's only an argument against dualism if we cannot do similar things to evoke thoughts of material objects. Can we stimulate a certain area of the brain and create thoughts about material objects, like food or other people?
This is really the key question for me. Since everything we interact with must first be ‘sensed’ – i.e. translated into neural action – before we can interact with it - this objection doesn't make sense to me without the assumption of monism. If I am understanding you correctly, you are saying that my question is impossible because your assumption of monism does not allow for two substances to exist and interact.
You don’t presume rocks disappear when no one is observing them. You do make that assumption about non-physical things. It seems to me that this is a consequence of the assumption of materialism, not monism. Under the assumption of idealism, such concepts would remain in existence even when we are not thinking of them because the ‘mind’ of idealism can be considered to be thinking of them. Correct?
Substance refers to that which exists. That is its definition and use withing philosophy. You can argue over what you think is most fundamental, but you can't doubt substance because the doubting proves that something exists from the cogito.
Substance refers to that which exists. You can argue over what you think is most fundamental, but you can't doubt substance because the doubting proves that something exists.
Saying there is no substance means there is no existence. It literally means 'nothing exists'. Why do I have to keep repeating this?
How does action refer to that which exists?
Actions can only occur if something exists to perform the action.
But even if you take that to be the case, that actions are primary, it doesn't change a whit of what has been discussed.
But an infinite regress doesn't make sense.
Certainly, numbers can function as adjectives. But like many other adjectives, such as colors, they also function as nouns. While this approach is one way to avoid the dilemma, it doesn't solve it. All intangible nouns can be reclassified as adjectives or actions, but that doesn't resolve the dilemma of whether concepts exist independent of our thinking about them.Just to muddy the water a bit, here is my take on numbers and whether they "exist" or not. As Ichneumonwasp mentioned earlier, the main problem seems to stem from the fact that "five" is a noun. I prefer to think of it as an adjective. In other words, instead of "five" being a thing unto itself, it is simply a property of things.
Okay, that's a valid point. Before we can attempt to understand something, we have to first establish what it is. Since we can't do that with the fundamental substance you are referring to, the lack of understanding and possibility of error are problems that are appicable to both monism and dualism. Dualism does have the complication of two substances but it also has the advantage of providing explanations for our observations of non-material things that seems a better fit than the explanations monism provides.It would if we want to say that we understand it. If we can't speak in terms of a mechanism, then we don't understand what is going on and we might be wrong.
Because we were discussing whether numbers exist independently of brains. Since we can do similar things for material objects that do exist independently of the brain that is thinking of it, we cannot conclude that being able to evoke thoughts of something, like numbers, implies that they exist only in our brains.Yes. I don't see why it is only an argument against dualism if we cannot do similar things to evoke thoughts of material objects. And yes, we can evoke thoughts of different material objects, even hallucinations.
I've not read Spinoza, so I can't comment much. From what's been said here, it still seems to me to be an assumption of the nature of substances, not necessarily a property of such substances if more than one substance exists.It isn't actually the assumption of monism but relates back to the definition of substance as it is used in Spinoza's philosophy, or at least as I understand it. Interaction implies that two things are made of the same substance.
We interact with other material objects through our neural system. I don't see why we cannot also interact with immaterial objects through our neural system.You can always argue that different substances can interact, but then you'd need to provide some means how that might be possible. How does the immaterial interact with the material?
The only place we are currently aware of such interactions occuring are within our thoughts. That is, of course, the example I gave and asked why it didn't count as an interaction between the physical and non-physical.How does the non-spatial interact with the spatial? It might be easiest to think about it by asking 'where does this interaction occur?'