Don't play dumb.
∞ is a free variable
Re: ∞ is a free variable
That's great advice! When will you begin practicing what you preach?
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Magnus Anderson
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Re: ∞ is a free variable
He's not playing
Re: ∞ is a free variable
TREE(3) meets the original criterion.Magnus Anderson wrote: ↑Tue Oct 08, 2024 11:05 pm When are you going to give us an integer that is neither even nor odd and that is expressed as a decimal numeral?
TREE(3) fails to meet both criteria.
It's an integer.
It's not odd (there isn't any proof of it being odd)
It's not even (there isn't any proof of it being even)
Therefore Tree(3) is NOT odd AND it's NOT even!
If something is NOT odd AND it's NOT even - then it's NEITHER odd NOR evem.
It fails to meet the criterion of being expressed as a decimal number, but I don't see how or why that's relevant. Are you implying that only integers expressed as a decimal numerals can be odd or even? That would be dumb. Are you being dumb?
Last edited by Skepdick on Wed Oct 09, 2024 7:18 am, edited 1 time in total.
Re: ∞ is a free variable
And yet you are
ALL integers are either odd or even. This instance of Excluded Middle can be proven inductively using the 2k/2k+1; or the modulo 2 definition.
Tree(3) is neither odd nor even because you can't figure out which pattern it follows.
This is not a contradiction because Excluded Middle is not assumed in general.
It's a trivial construction in sheaf theory to resolve this paradox and allow both the definite and indefinite parities to co-exist.
But you can't do this in a logic which can't represent indefinite states.
Queue some retort about how I am using terminology I don't understand.
Last edited by Skepdick on Wed Oct 09, 2024 9:33 am, edited 2 times in total.
Re: ∞ is a free variable
Sure. Reverse Mathematics tackles that.Will Bouwman wrote: ↑Sat Oct 05, 2024 6:47 am Well yes, there are limits to what you can construct with any given axiom. My question is really whether there is any limit on what you can choose as an axiom.
If you accept conclusion/theorem X work backwards to split appart the necessary from sufficient conditions.
Then you can work out which axioms are satisfactory and which aren't.
But if you are going the other way - you can choose literally any premise and go on an expedition about computing its consequences. Ad infinitum.
It's a useful tool. Insofar as it helps with conceptual clarity. If you know what you mean - you have a solid foundation to build from.
And it's all just tap-dancing around something being defined vs somethign being well-defined with ever-growing rigor or precision. It's just analytic philosphy on infinite difficulty.
I agree with Dijkstra: The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.
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Magnus Anderson
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Re: ∞ is a free variable
No it does not. You don't know what the original criterion was. You misunderstood it. And you refuse to admit a mistake and learn.
So when are you going to give us an integer that is 1) represented as a decimal numeral, and 2) neither even nor odd? Why are you avoiding doing that?
Oh my, how clueless you are.It's not odd (there isn't any proof of it being odd)
It's not even (there isn't any proof of it being even)
Therefore Tree(3) is NOT odd AND it's NOT even!
"Argument from ignorance" is not a valid argument. It's a logical fallacy.
Look it up.
https://en.wikipedia.org/wiki/Argument_from_ignorance
If you don't know that something is X, it does not follow that it is not X.
If you don't know whether any given number is even or odd, it absolutely does not follow that it is neither even nor odd.
Not to mention that there is a proof that EVERY integer is either even or odd.
And not to mention that there is a proof that TREE(3) is an even number.
It was what I requested. And if there is an integer that is neither even nor odd, then why is it difficult for you to represent it as a decimal numeral?It fails to meet the criterion of being expressed as a decimal number, but I don't see how or why that's relevant. Are you implying that only integers expressed as a decimal numerals can be odd or even? That would be dumb. Are you being dumb?
We should keep things as simple as possible instead of unnecessarily talking about what a particular function with particular arguments evaluates to.
The point is to prevent distraction techniques which you're so accustomed to.
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Magnus Anderson
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Re: ∞ is a free variable
And this proof is the only one that matters. And it follows from the definition of the terms.Magnus Anderson wrote: ↑Wed Oct 09, 2024 11:36 am Not to mention that there is a proof that EVERY integer is either even or odd.
An integer is said to be even if it can be expressed as "2 x n" where "n" is an integer.
Otherwise, it is odd.
Any given integer can either be expressed as "2 x n" or it cannot be. There is no other logical possibility.
Thus, every integer is either even or odd.
From this, we can conclude that TREE(3) is either even or odd. You not knowing which one it is is irrelevant and t's certainly not a proof that it is neither even nor odd.
Re: ∞ is a free variable
And now we are at the gaslighting phase...Magnus Anderson wrote: ↑Wed Oct 09, 2024 11:36 am No it does not. You don't know what the original criterion was. You misunderstood it. And you refuse to admit a mistake and learn.
You asked for an integer that is neither odd nor even.
I gave you Tree(3).
1. It's an integer.
2. It's not even (which does NOT imply it's odd)
3. It's not odd. (which does NOT imply it's even)
Because that's not what you asked for. Why are you moving the goal posts?Magnus Anderson wrote: ↑Wed Oct 09, 2024 11:36 am So when are you going to give us an integer that is 1) represented as a decimal numeral, and 2) neither even nor odd? Why are you avoiding doing that?
When are you going to give me the set of ALL integers represented as decimal numerals?
All you gave me were some dots.
I am not making an argument FROM ignorance. I am making a factual argument ABOUT ignorance.Magnus Anderson wrote: ↑Wed Oct 09, 2024 11:36 am Oh my, how clueless you are.
"Argument from ignorance" is not a valid argument. It's a logical fallacy.
YOUR Ignorance.
YOU don't know that Tree(3) is Odd.
YOU don't kow that Tree(3) is Even.
Therefore the epistemic status of Tree(3) in YOUR OWN HEAD is "NEITHER ODD NOR EVEN"
Which is why nobody is making such claims. not(X) and (not X) are different claims in Constructive Mathematics.Magnus Anderson wrote: ↑Wed Oct 09, 2024 11:36 am If you don't know that something is X, it does not follow that it is not X.
It trivially follows in a Constructive setting.Magnus Anderson wrote: ↑Wed Oct 09, 2024 11:36 am If you don't know whether any given number is even or odd, it absolutely does not follow that it is neither even nor odd.
You have neither a proof of it being odd nor a proof of it being even.
Neither its oddness nor its evenness can be asserted.
A general property of ALL integers is not a particular property of any given integer.Magnus Anderson wrote: ↑Wed Oct 09, 2024 11:36 am Not to mention that there is a proof that EVERY integer is either even or odd.
The number 1 is not "either odd or even". It's just odd.
The number 2 is not "either odd or even". It's just even.
Wonderful! An existence claim!Magnus Anderson wrote: ↑Wed Oct 09, 2024 11:36 am And not to mention that there is a proof that TREE(3) is an even number.
Please construct the proof.
No, it's not. Why are you lying? Maybe it's what you INTENDED to request, but it's most definitely not what you requested.
It's on record and everything.
Because there's not enough universe to hold its representation?Magnus Anderson wrote: ↑Wed Oct 09, 2024 11:36 am And if there is an integer that is neither even nor odd, then why is it difficult for you to represent it as a decimal numeral?
UNcharirtable as always. Like the wanker that you are.Magnus Anderson wrote: ↑Wed Oct 09, 2024 11:36 am The point is to prevent distraction techniques which you're so accustomed to.
Last edited by Skepdick on Wed Oct 09, 2024 12:41 pm, edited 2 times in total.
Re: ∞ is a free variable
Everything in the universe is ether an elephant or it's not an elephant!Magnus Anderson wrote: ↑Wed Oct 09, 2024 11:55 amAnd this proof is the only one that matters. And it follows from the definition of the terms.Magnus Anderson wrote: ↑Wed Oct 09, 2024 11:36 am Not to mention that there is a proof that EVERY integer is either even or odd.
An integer is said to be even if it can be expressed as "2 x n" where "n" is an integer.
Otherwise, it is odd.
Any given integer can either be expressed as "2 x n" or it cannot be. There is no other logical possibility.
Thus, every integer is either even or odd.
This is circular reasoning. You are just re-wording the Law of Excluded Middle.
You can also conclude that TREE(3) is either an elephant or it isn't.Magnus Anderson wrote: ↑Wed Oct 09, 2024 11:55 am From this, we can conclude that TREE(3) is either even or odd.
You have proven neither the oddness of TREE(3) nor the evenness of TREE(3).Magnus Anderson wrote: ↑Wed Oct 09, 2024 11:55 am You not knowing which one it is is irrelevant and t's certainly not a proof that it is neither even nor odd.
You have provided no continous map (a proof!) from TREE(3) -> {Odd, Even}
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Magnus Anderson
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Re: ∞ is a free variable
No gaslighting whatsoever, merely your desire to explot the slightest inexactness in other people's claims.
That's exactly what I asked for.
Why shuld I do that?
The epistemic status of TREE(3) in YOUR head is "I don't know whether it's even or odd".
"I don't know whether it's even or odd" is not the same as "It's neither even nor odd".
Why should anyone care what follows in your imaginary, made up, fantasy version of logic?
In real logic, it does not follow. It's an argument from ignorance, a logical fallacy, a sophistical argument.
I actually do. But let me just add that just because neither its oddness nor its evenness can be asserted by you, it does not follow that it's neither even nor odd.
You actually need a proper proof, not merely an argument from ignorance, that TREE(3) is neither even nor odd.
You haven't provided one so far.
It very much is.
They are both.
I don't have to.
Oh, so only extremely large numbers are neither even nor odd? How convenient! Well, in that case, you should choose a random integer that is neither even nor odd and tell us its last decimal digit. You don't have to give us all of its digits. Just the last one. If it happens to be 0, 2, 4, 6 or 8, the integer is even. Otherwise, it is odd. I'm looking forward to this magical last decimal digit.
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Magnus Anderson
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Re: ∞ is a free variable
Correct. And your point is?
So you also don't know what circular reasoning is.
Correct. And your point is?
I have proven that TREE(3) is either even or odd.
You yourself have done nothing other than employ argument from ignorance in an effort to prove that TREE(3) is neither even nor odd.
Re: ∞ is a free variable
You are complaining about excatness when discussing Mathematics ?!?!Magnus Anderson wrote: ↑Wed Oct 09, 2024 5:29 pm No gaslighting whatsoever, merely your desire to explot the slightest inexactness in other people's claims.
I guess you have no idea what exactness is then, huh?
I don't know. Why should you do that? Why should I do anything?
That's precisely exactly what the epistemic claim "it's neither odd nor even" means.Magnus Anderson wrote: ↑Wed Oct 09, 2024 5:29 pm The epistemic status of TREE(3) in YOUR head is "I don't know whether it's even or odd".
In our heads (the only place where Mathematics exists) - it's NEITHER odd NOR even.
They are epistemically identical statements. Unless you are a silly Platonist who thinks numbers exist somewhere out there.Magnus Anderson wrote: ↑Wed Oct 09, 2024 5:29 pm "I don't know whether it's even or odd" is not the same as "It's neither even nor odd".
Because my imaginary, made up, fantasy version of logic is stricter, more expressive and more precise than your imaginary made up version of logic.Magnus Anderson wrote: ↑Wed Oct 09, 2024 5:29 pm Why should anyone care what follows in your imaginary, made up, fantasy version of logic?
Magnus Anderson wrote: ↑Wed Oct 09, 2024 5:29 pm In real logic, it does not follow. It's an argument from ignorance, a logical fallacy, a sophistical argument.
Your imaginari version of logic is "REAL"?
Take your meds.
That's precisely what follows.Magnus Anderson wrote: ↑Wed Oct 09, 2024 5:29 pm I actually do. But let me just add that just because neither its oddness nor its evenness can be asserted by you, it does not follow that it's neither even nor odd.
1. I can't say that it's Odd - because I have no reason to believe it
2. I can't say that it's Even - because I have no reason to believe it.
I have no reason to believe it's either one!
I gave you a proper proof.Magnus Anderson wrote: ↑Wed Oct 09, 2024 5:29 pm You actually need a proper proof, not merely an argument from ignorance, that TREE(3) is neither even nor odd.
1. There is NO proof for it being odd.
2. There is NO proof for it being even.
3. There is NO reason to believe it's either odd OR even because NEITHER one is proven true.
The instance of LEM with respect to TREE(3)'s parity has NOT been proven.
The negation of EITHER is NEITHER.
Yes I have.
You think 1 is odd OR even; and not just odd ?!?
You think 2 is odd OR even; and not just even ?!?
What's wrong with you?
No they are not. odd OR even presents a choice.
ODD-only or EVEN-only presents NO choice.
Is this the Mathematics sub-forum or the Clown subforum?
It's decidedly inconvenient. Since you want to know the answer.Magnus Anderson wrote: ↑Wed Oct 09, 2024 5:29 pm Oh, so only extremely large numbers are neither even nor odd? How convenient!
Sure thing! (with dripping irony) I'll give you EXACTLY the answer you've given meMagnus Anderson wrote: ↑Wed Oct 09, 2024 5:29 pm Well, in that case, you should choose a random integer that is neither even nor odd and tell us its last decimal digit.
It's either 0, or 1, or 2; or 3; or 4; or 5; or 6; or 7; or 8; or 9; or 0.
Yeah... you don't have to give us ALL the options on Parity.Magnus Anderson wrote: ↑Wed Oct 09, 2024 5:29 pm You don't have to give us all of its digits. Just the last one. If it happens to be 0, 2, 4, 6 or 8, the integer is even. Otherwise, it is odd. I'm looking forward to this magical last decimal digit.
I am looking to this magical Odd or Even answer.
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Magnus Anderson
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Re: ∞ is a free variable
"Odd" means the same thing as "not even". And "even" means the same thing as "not odd". It's by definition. So when you say, "It's neither even nor odd" you're saying "It's odd and even". Obvious nonsense.
"I don't know whether X is even or odd" is a claim about one's knowledge. "X is neither even nor odd" is a claim about X. Two very different claims. Certainly, the latter does not follow from the former.
Since 1 is odd, it is also either even or odd.
Since 2 is even, it is also either even or odd.
And so on.
You have too many issues with language, so you should stay away from philosophy as far as possible. With your cardinal lack of adequate intellectual capacity, you can only demolish it.
"I don't know whether X is even or odd" is a claim about one's knowledge. "X is neither even nor odd" is a claim about X. Two very different claims. Certainly, the latter does not follow from the former.
Since 1 is odd, it is also either even or odd.
Since 2 is even, it is also either even or odd.
And so on.
You have too many issues with language, so you should stay away from philosophy as far as possible. With your cardinal lack of adequate intellectual capacity, you can only demolish it.