You are viewing the historical archive of The Philosophy Forum.
For current discussions, visit the live forum.
Go to live forum

Michael

Comments

I don't have a position, but here are the options: 1. "there are unknowable truths" is knowably true 2. "there are unknowable truths" is unknowably tr...
November 15, 2024 at 10:00
“All truths are knowable” cannot be unknowably true. Therefore one of these is true: 1. “All truths are knowable” is knowably true 2. “All truths are ...
November 15, 2024 at 02:14
You haven’t shown it. You just asserted it.
November 15, 2024 at 02:06
You’re just asserting that some truths are unknowable. Can you justify the part in bold? If not then you haven’t shown that (5) is true.
November 15, 2024 at 01:50
I'd support a USE.
November 15, 2024 at 00:16
The same Christopher Wray he appointed?
November 15, 2024 at 00:12
I believe the appeal has been rescinded as Jack Smith is resigning so we won't get a decision on the matter. It's moot.
November 15, 2024 at 00:11
Here's a scenario: P1. Only John exists P2. John believes that something other than himself exists C1. Therefore, John holds a false belief P3. (optio...
November 14, 2024 at 23:15
But to offer a more substantive response, one of these is true: 1. "all truths are knowable" is true and knowable 2. "some truths are unknowable" is t...
November 14, 2024 at 22:39
How can the realist justify the claim that some unknown truths are unknowable? You would have to know them to know they are unknowable, no?
November 14, 2024 at 21:57
And as mentioned before, the antirealist rejects the conclusion. They might claim that every truth is knowable but that some truths are unknown.
November 14, 2024 at 21:06
They do, e.g. by adopting intuitionist logic. That's not the antirealist thesis. The antirealist thesis is that something is true only if it can be de...
November 14, 2024 at 20:43
I think a simple solution is to use a restricted knowability principle: ?p?q((p ? (q ? ¬Kq)) ? (p ? ?Kp)) For all p that doesn't entail that some q is...
November 14, 2024 at 14:20
Matt Gaetz as attorney general? Jesus, I'm laughing. What a joke this whole thing is. :lol: Wasn't he the one who paid that 17 year old for sex?
November 14, 2024 at 10:36
Well, let's take the SEP article: So the anti-realist doesn't claim that all truths are known, only that all truths are knowable. Fitch attempts to re...
November 14, 2024 at 09:56
I was mostly addressing this: The claim is that the only things that are true are things that can be known to be true. Fitch may attempt to prove that...
November 14, 2024 at 09:20
You mention Fitch's paradox, which is also an argument against mathematical constructivism, and as you said in an earlier post, "I have however also d...
November 14, 2024 at 08:58
And there is a person. That person remembers growing up as you, not as Jane. Your claim is that this person is Jane because it's Jane's body and my cl...
November 13, 2024 at 16:46
"So-and-so is a wife only if she has been legally married" does not mean "so-and-so is a wife only if she has the potential to be legally married". So...
November 13, 2024 at 12:19
According to some anti-realists, X is a cup only if it stands in a certain kind of relationship with us, just as X is a king only if it stands in a ce...
November 13, 2024 at 12:01
"John is a man" being true is consistent with but has nothing to do with "Jane is a woman" being true. I'm not sure how that distinction applies to th...
November 12, 2024 at 22:55
I explained it quite clearly in that post: P1. A cup exists if and only if there exists some X such that X is a cup P2. For all X, X is a cup only if ...
November 12, 2024 at 21:57
There's a reason that a "brain transplant" is also called a "whole-body transplant". https://en.wikipedia.org/wiki/Brain_transplant I think this is th...
November 12, 2024 at 18:23
The brain has all the connections it had before it was removed from your body, so she will have your memories. And I think that's absurd. It's not the...
November 12, 2024 at 18:11
That doesn't answer my question. Jane's brain is removed and replaced with yours. According to you, it's still Jane. But given that memories are store...
November 12, 2024 at 17:34
An upload is just a copy, it's not me. It's not like there's some physical substance that is literally removed from my brain and placed on a computer ...
November 12, 2024 at 17:06
I'm curious; let's assume that brain transplants are possible and easy and that you have been diagnosed with terminal brain cancer. Would you accept a...
November 12, 2024 at 16:36
So, for you, a brain transplant is a memory and personality transplant? Jane receives your brain and with it loses her memories and personality but ga...
November 12, 2024 at 16:30
I'm undecided. I don't know whether consciousness is reducible to neurological activity or if it's some (non-physical?) supervenient phenomenon. I am ...
November 12, 2024 at 15:55
A ? B means B or not A If I punch you then you will cry does not mean you will cry or I won't punch you.
November 12, 2024 at 15:44
There's no logical mistake? It's just the case that "if ... then ..." in ordinary English doesn't mean what "?" means in propositional logic.
November 12, 2024 at 15:33
They probably wouldn't, because the grammar of ordinary language does not follow the rules of propositional logic. In propositional logic, the followi...
November 12, 2024 at 15:27
If it is raining then it is not raining Therefore, either it is not raining or it is not raining Therefore, it is not raining It is raining Therefore,...
November 12, 2024 at 15:23
The conclusion logically follows, as has been explained many times. P ? ¬P ? ¬P ? ¬P ? ¬P P ? ¬P Or more simply: ¬P P ? ¬P The only issue is that peop...
November 12, 2024 at 15:14
Not all anti-realists claim that. This is the sort of argument that an anti-realist might make: P1. A cup exists if and only if there exists some X su...
November 12, 2024 at 15:01
As discussed in the other thread, if the antecedent is false then the material conditional is true, i.e “if P then Q” is true if “P” is false. There w...
November 12, 2024 at 14:40
I'm just considering a very simple example; Jane and I are decapitated, but our heads (and so brains) are kept alive. Jane's head (and so brain) is at...
November 12, 2024 at 12:49
Just as being a king is not a property/condition that is reducible to mere material composition and location in space and time it can be argued that b...
November 12, 2024 at 12:39
I'm not saying that he's not Jane because he doesn't have Jane's memories; I'm saying that he doesn't have Jane's memories because he's not Jane. I th...
November 12, 2024 at 12:29
Originally I wrote "if I am American then I am the President", but I changed "I" to "Michael" to avoid any debate about indexicals.
November 12, 2024 at 09:37
Take two questions: 1. Is the king in the palace? 2. Is the cup in the dishwasher? Do we understand (1) extensionally as being about Charles, such tha...
November 12, 2024 at 09:00
In what way is society "bending over backwards"?
November 11, 2024 at 16:23
If "P" is false then "If P then Q" is true. I am not American, therefore, "I am American" is false, therefore "If I am American then I am the Presiden...
November 11, 2024 at 14:32
You're not talking about validity there, you're talking about the truth of an "if ... then ..." premise. In propositional logic "if Michael is America...
November 11, 2024 at 14:15
I think it's important to recognise the distinction between intension and extension. As an example; if the monarchy in the UK is abolished, does King ...
November 11, 2024 at 11:33
Consider it from your perspective. You undergo the operation. When you wake up do you start identifying as Jane simply because you have her arms and l...
November 09, 2024 at 20:49
In the case of gradual updates, yes, much like the Ship of Theseus. This is the only way I can imagine something like "mind uploads" to actually work ...
November 09, 2024 at 19:17
That isn't my definition. Someone in hospital on a ventilator is still a person. I'm speaking to a person. Remove someone's limbs and they're still a ...
November 09, 2024 at 18:18
Or for a real example there's Vladimir Demikhov, who transplanted the upper body of one dog onto another. https://img2.thejournal.ie/inline/797403/ori...
November 09, 2024 at 17:23
The brain uses the lungs and mouth to speak. Much like right now you are using a computer/phone to speak to me. For the sake of this discussion we are...
November 09, 2024 at 16:40