How can an object such as an apple, having a self-identity, have infinite possibilities ? — RussellA
“For every property F…..” F can be any property, such that if F belongs to x, and if x is identical to y then it is necessary that F belong to y. If F is the property of being round, and if x is round and y is identical to x, then y is round. That’s fine, in that x is, e.g., a round cue ball and y is, e.g., an identically round baseball. Which is also fine, insofar as the conditional is “for any two objects”, satisfied by one cue ball and one baseball.
It remains that a cue ball is not a baseball. But if x is to stand as identical to y, one of every property F is obviously not sufficient to cause x to be identical to y because of F. So keep adding F’s to x, maybe hundreds of F’s, such that when those properties also belong to y, they become closer and closer to both x and y being either a cue ball or a baseball. Still satisfies “for any two objects”, as well as for any property F which belongs to x also belongs to y.
The kicker: “For every property F….”, in order for the cue ball x and the baseball y to be identical, every property F must belong to both equally. It follows that in order for x to be identical to y, a space F belonging to x is the same space F belonging to y, and x and y simultaneously be commonly imbued with every other possible F equally. But two objects sharing the same space F is a contradiction, which negates the case. It must be, then, that they occupy different space F’s but still be commonly imbued with every other F equally. How does that happen, you ask….surely with bated breath. Well…..the space of x in one world, and the space of y in another world. What else????? — Mww
Hence contingent identity, contingent on the possibility of other worlds. Under the assumption of another merely possible world, however, such world can only have possible space, from which follows only a possible y can have the property of possible space, or, more correctly, only a possible y can occupy a possible space possibly, which reduces to a real x being identical to a possible y, which is not the original argument. In effect, then, in order to assume x = y identity necessarily, mandates a veritable maze of contingent possibilities.
And that’s a category mistake. Dunno if it’s yours or not, but it works, doesn’t it? The article goes on to circumvent these mistakes, re: “let us use necessity weakly”, or actually, to deny them altogether, re: “I will not go into this particular form of subtlety** here because it isn’t relevant”, in order to justify the notions contained further on in it. — Mww
But still, if a theory starts out illogically, and if the circumventions are not all that valid, wouldn’t it jeopardize the whole? Kripke is just saying, if it was this way, we could say this about it. But if it couldn’t be this way, why still talk as if it could? He goes on to talk about it in a different way, that’s all.
(** existence as a predicate, reflecting on existence in possible worlds) — Mww
For example I could identify as a Police Officer. Is that problematic? Does it entail I should have to do some police work? Am I undermining the police force? — Andrew4Handel
Someone might be deceiving one's self however in self presentation. We can deceive ourselves and hence portray a false image of ourselves not reflecting some facts about us. — Andrew4Handel
Kripke didn't want to unite contingent with identity, he wanted to unite necessity with identity. — RussellA
When I enjoy content I tend to value it more, regardless of its actual merit. — Tom Storm
Best I can do is tell if something is riffing off fallacies and banalities. And I am more likely to value a contribution if I can understand the position being articulated on account of clear English and coherent conceptual framing. — Tom Storm
Fair. Do you have such a criteria or can you imagine one? — Tom Storm
Sorry, but it's entirely legitimate to ascribe the predicate of existence of Mary in a possible world. Why is there so much confusion about counterpart theory or possible world semantics? — Shawn
That's what I would call a category mistake.Kripke wants to unite the contingent with identity... — Mww
Sure, the first time they hear the phrase "there is a possible world such that blah-blah-blah". Then someone explains it to them, and they're all good. The only problem here is your stubborn insistence that people can't or shouldn't use terms in a way you don't like or agree with. But that's a problem on your end: possible-world semantics works, it is a useful tool, and so logicians and philosophers are going to continue to use it. If you don't like it, you're free to not participate. — busycuttingcrap
In the expression "an individual exists in a possible world", the word "exist" is being used metaphorically, not literally, in the same way that it is being used metaphorically in the sentence "I existed on my desire for vengeance". The problem with a metaphorical language is that meaning depends on context and if the context is vague then the meaning is vague. — RussellA
The problem is, that if we said "an individual exists in our actual world", are we still using "exists" metaphorically or literally ?
And then again, where does this "actual world" exist. I think it exists in the mind, though others would disagree. But even "the mind" is a metaphor.
IE, an individual exists in a possible world metaphorically, a possible world is a metaphor, exists in our actual world is being used either metaphorically or literally, and our actual world exists either metaphorically in our minds or literally as mind-independent. — RussellA
I generally associate high quality with pellucid English sentences that state things elegantly and simply. — Tom Storm
If we stipulate that we're using phrases like "there is a possible world such that X" to mean "X is logically possible", then that's what we mean when we use those phrases- if you don't like it, too bad. — busycuttingcrap
I'm sorry that you object to people using ontological-sounding language to talk about modality and possibility rather than existence, — busycuttingcrap
So yes, an individual "exists" in numerous, maybe even uncountable, possible worlds, because there are numerous, maybe even uncountable, logically-possible propositions, predicates, etc that we can say of a given individual. — busycuttingcrap
For some reason, since that's not a position I actually hold (nor is it likely one Banno holds, either). We're just that diabolical I guess. :roll: — busycuttingcrap
What do I mean by ‘rigid designator’? I mean a term that designates the same object in all possible worlds. — RussellA
Regardless, I'd like to ask the general question of the title of this thread in terms;
A) If true, are you looking for higher quality content?
B) If false, disregard. — Shawn
None of what has been said here is making ontological claims; it is only setting up consistent ways of talking about counterfactuals. — Banno
The claims in question aren't ontological claims; that's the entire point. They sound or look like ontological claims, but they are not. So when I say that "there is a possible world such that X", for instance if I say "there is a possible world such that MU is president of the United States of America", I am not making an ontological claim, I am not asserting the existence of anything: the phrase "there is a possible world such that X" is synonymous and interchangeable with the phrase "X is logically possible/self-consistent/non-contradictory". So I'm not asserting that there exists any such world, I'm just saying that the proposition of MU being the president of the USA is logically possible/does not entail a contradiction. — busycuttingcrap
I think you're missing the point/meaning of possible-world semantics, MU. Aside from people like Lewis (who is a realist wrt possible worlds), "existing in a possible world" is (essentially) just a different way of saying that something isn't contradictory, that it does not entail a contradiction. That's it. So saying an individual exists in a possible world is only to say that some particular description, predicate, or state of affairs involving that individual is logically possible- it doesn't involve any contradiction or inconsistency.
So yes, an individual "exists" in numerous, maybe even uncountable, possible worlds, because there are numerous, maybe even uncountable, logically-possible propositions, predicates, etc that we can say of a given individual. — busycuttingcrap
Sure it does: "existing in a possible world" means not entailing a contradiction. And there are numerous claims we can make about a given individual that do not entail contradictions (remember, "there exists a possible world" is synonymous with "does not entail a contradiction"). — busycuttingcrap
And so this suffices to address your concern about "the existence of the individual": as far as modality goes, the existence of an individual in different possible worlds is the same thing as having multiple logically possible/self-consistent propositions or predicates we can assert of that individual. MU "exists" in multiple possible words... because there are multiple propositions or predicates we can assert of MU that do not entail contradictions. — busycuttingcrap
It seems like you didn't hear me the first time. Every time you read "there is/exists a possible world such that X, Y, or Z", mentally substitute "it is not contradictory/inconsistent that X, Y, or Z". Possible-world semantics isn't actually making an ontological claim (at least, not if you're not David Lewis), its making a claim about logical consistency. And so obviously, the actual world is a possible world, since "being a possible worlds" means "not being contradictory/logically inconsistent". And the actual world is not self-contradictory or logically inconsistent, so, it is a possible world. I mean, obviously, how could the actual world be actual, if it wasn't possible? — busycuttingcrap
Sure it does, because "existing in a possible world" isn't an existence claim about other worlds, despite appearances to the contrary. Replace "existing in a possible world" with "being logically possible/self-consistent", and your objection disappears. — busycuttingcrap
Understanding how certain technical terms are actually used in the relevant sub-field is actually just about the opposite of misguided philosophy: its trying to understand what philosophers mean, on their own terms. So its sort of necessary for a proper understanding of any philosopher. But I was admittedly tentative about engaging with you on this, because you are, frankly, sort of known for being stubborn about these things and not amenable to correction. But I assure you, as someone who spent most of their undergrad philosophy degree focusing on contemporary analytic philosophy and philosophy of language (so, for instance, folks like Saul Kripke), you're simply misunderstanding what these terms usually mean, in the context of contemporary philosophy/modal logic. — busycuttingcrap
According Kripke, his wooden lectern is made of wood in every possible world where that lectern exists. There are all sorts of properties we could change and still have the same lectern, but being wooden isn't one of them.
It's an essential property. Do you disagree with him about this? — frank
Kripke brought up possible worlds as an aid to understanding how modality works. There are ways of parsing modal expressions that turn them into nonsense, and I think MU would be inclined to do that. He'd say we can't assert that Nixon could have lost, because if he lost, that wouldn't be Nixon.
I think this confusion arises from trying to do something ontological with modal expressions, when that's not the intent behind them. We're generally just playing with logical or metaphysical possibility, and that's the way possible worlds should be taken: as logical hypotheses. — frank
So yes, an individual "exists" in numerous, maybe even uncountable, possible worlds, because there are numerous, maybe even uncountable, logically-possible propositions, predicates, etc that we can say of a given individual. — busycuttingcrap
It looks like you're pretty firmly wedded to the idea of a Cartesian theatre. — frank
I'm not, but it does occasionally jar me to know that I'm a product of chemicals and customs. :grimace: — frank
We know that a rigid designator picks out the very same individual every possible world. — Banno
It's just clear that who you are is culturally and chemically mediated. Whether you are a lawyer or a gangster, that stuff depends on your environment. Was there lead in the water you drank as a child? Did you inherit schizophrenia? Were you sexually abused? Was your father a billionaire? Did you become a heroin addict?
You'll be a very different person in each of these cases, with very different emotions and cognitive functioning. This leads us to ask what the homunculus is supposed to be. — frank
The idea of a Cartesian theatre is subject to the development of an infinite regress if we imagine that the stream of data coming into the CNS is being witnessed by an internal person. — frank
Yes, the faulty premise is that the psyche is a full fledged being that is somehow independent of the body and the body's environment. For a lot of reasons, we know that can't be what's happening. The homunculus fallacy is just part of that. — frank
So the homunculus is only a logical problem if we're using it to explain something about consciousness. — frank
I would say creativity is the reordering of things that exist into a concept that you have not encountered before. — Philosophim
I'd call consciousness the act (activity) of having sensations, thoughts, and so on; a more active notion than taking it as a thing that does the experiencing. A step further form the homunculus. — Banno
On the other hand we have accounts of how numbers are used in our everyday practices, which can include, for the mathematicians amongst us, quite complicated and sophisticated machinations. Numbers are to be understood not by setting up definitions from first principles, but by learning to make use of them. — Banno
We would verify his definition by comparing it to our use of the number two, checking that what Russell defines is indeed adequate for the everyday tasks we set for that number. We would verify or falsify his definition by comparing it to our use of "two". after all, any stipulated definition is evaluated by comparison with the empirical facts of language use.
That is, the use of the number two has priority over any contrived stipulation. — Banno
Do you think math is discovered or created? — khaled
No it isn't. Let's first assume that all the items are boxes without a doubt, for simplificiation. Regardless of what system we make up, there will be a correct answer within it, not so for pure fiction. — khaled
What problems arise if we consider values to be real in the same way that boiling point is real? — khaled
I think there is a problem with saying values are fictitious, being that if they are fictitious, then changing them should not mean we are wrong.
Take the Santa Clause story. That's fictitious because even if you change the story so that Santa uses flying horses, you're not "wrong". It's a work of fiction after all you can do whatever you want. Santa could be a vampire.
However if you have 5 boxes lined up in front of you and you say there are 4 boxes, you are wrong. That tells me that values aren't works of fiction. They refer to something we commonly understand. — khaled
Sure, I believe they still exist. And to be clear we are discussing values correct? Like "100 degrees Celsius". I must say that seeing a realist that believes that "boiling point" exists but that its value doesn't exist is a first time for me.
I'll start with asking you, if you think these values don't exist, then what are we referring to when we use them? — khaled
The value of the gravitational force depends on gravitational constant, the masses of the object, and the distance between them. Which for some reason makes it so that the value of the gravitational force doesn't exist
And yet the gravitational force exists.
The value of the boiling point depends on pressure, the type of liquid, and a bunch of other things. Which for somea reason makes it so that the value of the boiling point doesn't exist.
And yet the boiling point exists.
It's the exact same situation with the exact same logic. I don't know where you got this distinction: — khaled
So the value of gravitational force does not exist since it varies based on what units/formulas we use? Is that what you're saying? — khaled
But the "boiling point" is on exactly the same level as "gravitational force". We use both in formulas abstractly. And neither are talking about a specific value. — khaled
Yes, but in all of these cases, the boiling point exists yes? There exists a temperature at which something boils, although we can use arbitrary units to represent it leading to different values. — khaled
you seem to be working with a homunculus-like view of the self, as if you were sitting inside your head looking out, receiving raw inputs of information that you interpret using a priori scripts. That is a view often attributed to Kant, although there are Kantians who deny it. The homunculus is, for several reasons, to be rejected. — Banno
In this case, I think, there would be no equivocation, as you say, neither any kind of interaction of two types of objects. — Alkis Piskas
Based on my own experiences of not just dreams but also on borderline sleep experiences and lucid dreaming, I would say that they come from some kind of objective source. At times, I have visionary experiences which are like intricate art work and they seem as if they are far beyond my own rational creative power. I would like to do art based on these but it is difficult because I can't recall the exact details when my eyes are open. — Jack Cummins
However, if one does believe in the existence of the collective unconscious as objective, the realm between the personal and collective sphere may be complicated. That is because characters in novels may be sub personalities of the authors. — Jack Cummins
But I didn't say the existence of gravity. I said "gravitational force". Specifically because it is also a value that varies with a lot of factors. But it exists. — khaled
But by your logic, since the gravitational force depends on distance, and the mass of the two objects, it doesn't exist. — khaled
So "tree" here is a reference to an individual. Is 'two" an individual in this way? — Banno
Numbers are abstract objects. They do not actually exist. — Alkis Piskas
And yet taxes exist.... — khaled
My point is simple. The amount you have to pay in tax varies a lot. And yet taxes exist. Hence just because the value of it varies does not mean the thing does not exist.
Same with gravitational force. Gravitational force exists even though the gravitional force changes based on distance. — khaled
The word "two" refers to the objectively real number 2, just as "tree" refers to an objectively real tree. — Art48
