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

TonesInDeepFreeze

Comments

Definition of 'extensionally meaningful'? And, if you respond with word salad, as you are wont to do, then I can't help you. That's not a definition o...
September 17, 2022 at 02:41
pi is not a ratio of two rational numbers. pi is the ratio of the circumference of any circle and its diameter. But if the diameter is rational then t...
September 17, 2022 at 02:15
There's no consideration of intensionality in the illustration. I have no idea what you think you're saying, and, after a number such exchanges with y...
September 17, 2022 at 01:41
You've described your notion of potential infinity a few times (in another thread especially). And I've replied about it each time. Now, you're coming...
September 17, 2022 at 01:35
Your analogy betwen mathematics and theology is not apt. One can disprove 'there exists an infinite set' by stating axioms that disprove 'there exists...
September 17, 2022 at 01:08
The "paradox": Let there be a hotel with denumerably many rooms with room numbers 1, 2, 3 ... Suppose there are denumerably many guests in rooms and t...
September 17, 2022 at 00:41
As I recall, it's not a perpetually growing hotel. Rather, it's a hotel with denumerably many rooms and denumerably many guests, one to each room. The...
September 17, 2022 at 00:23
The hotel is not finite. It has infinitely many rooms. ZFC doesn't distinguish among hotels, real or mythical. And the point is not that there is a co...
September 16, 2022 at 23:29
1) Tarski was dealing with sentences. 2) The biconditional is for material equivalence. 2) It's a definition.
September 16, 2022 at 22:52
I don't have answers to those questions.
September 16, 2022 at 22:45
I know some of the basics of mathematical logic pretty well, but I'm not even within a telescope's distance of being an expert on it or anything other...
September 16, 2022 at 22:13
Would you please tell me what textbook(s) in mathematical logic is the source of your understanding of the basics of this subject? Then, if I have the...
September 16, 2022 at 21:52
You have got to be kidding! Please tell me you are kidding!
September 16, 2022 at 05:53
Gaudeo te relinquere, domine. There, see, I took you up on your suggestion to visit Google.
September 16, 2022 at 05:03
You'd be right if that emoticon meant 'QED'.
September 16, 2022 at 04:52
What? You're the one spreading disinformation, notwithstanding the little touch you give with Latin phrases. You say that set theory claims that a (pr...
September 16, 2022 at 04:49
It's not so much that you don't meet a standard of rigor, it's that you lie about the subject.
September 16, 2022 at 04:31
There's nothing in the world that doesn't have detractors. So, by your logic, everything is wrong.* Finitism has detractors, so by your logic, there's...
September 16, 2022 at 04:30
Then you write a post having nothing to do with your quote of me. It still stands that it is disinformation to say that set theory claims that a (prop...
September 16, 2022 at 04:13
There are critics of X, therefore there is something very wrong with X. That is a risibly stupid argument.
September 16, 2022 at 04:08
Okie dokie cranky spanky.
September 16, 2022 at 03:15
That just takes the conversation back to where we were before. One can have whatever concept of limits one wants to have, including conceiving in term...
September 16, 2022 at 03:12
That means you understand why it's not such a good idea to post disinformation that set theory claims that a (proper) part is equal to the whole? And ...
September 16, 2022 at 03:01
Of course. No one says that you have to. A circle is a certain kind of set of points. I don't know what you mean. Yes, and since infinitistic mathemat...
September 16, 2022 at 02:55
A sequence is a set. And it has a domain, which is a set, and a range, which is a set. An infinite sequence is an infinite set with an infinite domain...
September 16, 2022 at 02:52
Mathematics, in many branches, is brimming with sets. Analysis, topology, abstract algebra, probability, game theory... Can't even talk about them, ca...
September 16, 2022 at 02:47
Just to be clear, an infinite set has the same cardinality as some of its proper subsets, but not all of them. No it does not. It means a proper part ...
September 16, 2022 at 02:44
No. But all complete ordered fields are isomorphic with one another. So all complete ordered fields are isomorphic with the system of reals. I know th...
September 16, 2022 at 02:28
I don't take it that there is "the" point, but rather many forms of application, engagement and appreciation. Some of them not necessarily that of "pu...
September 15, 2022 at 23:54
About a meta-metalanguage: What is wrong with this?: Given a language L, and an interpretation M of L, and a sentence P of L: A sentence 'P' is true p...
September 15, 2022 at 23:47
"Made his name" is not definite enough for me know whether that's true or false. But, of course, Tarski is a giant in mathematics and philosophy, and ...
September 15, 2022 at 23:35
There is no doubt that the schema has wide and pervasive application and interest throughout philosophy. But in one of the SEP articles it also mentio...
September 15, 2022 at 23:10
I haven't carefully read that article, but are your own remarks dependent on the article? If so, should we take it that Raatikainen's summary of Putna...
September 15, 2022 at 22:11
Do you mean this?: Where in Tarski's example is snow denoted by 'snow' and white denoted by 'white'? If not in the example, then how can the schema be...
September 15, 2022 at 18:25
I need to read the rest of your post carefully, but I am not familiar with people saying: denoted as I guess you mean: denoted by or denotes I am not ...
September 15, 2022 at 17:36
It might be the case that an ultrafinitist system would not be subject to the incompleteness theorem? I don't know. We'd have to see the system or at ...
September 15, 2022 at 16:47
With no comment on nominalism, I think you're right that it is cleaner not to drag in 'property'. But my original use of 'property' was not meant in a...
September 15, 2022 at 16:06
Church says, "A property, as ordinarily understood, differs from a class only or chiefly in that two properties may be different though the classes de...
September 15, 2022 at 15:52
Yes. I fixed it now. Thanks.
September 15, 2022 at 15:42
You say.
September 15, 2022 at 07:59
I might see what you're getting at, but you've not put it in a way that is clear to me. We should take it in steps: (1) Df. An argument is an ordered ...
September 15, 2022 at 07:52
The standard method is the method of models The notion of 'consistency' is purely syntactical, it does not mention 'truth'. You've added past the defi...
September 15, 2022 at 07:19
(1) 'finitism' has different senses. (2) Perhaps it is not necessary to have infinite sets for an axiomatization of mathematics for the sciences. It's...
September 15, 2022 at 06:46
If I'm not mistaken, the 'snow is white' example was mainy to illustrate, while the main application of the Tarskian schema is for formal theories.
September 15, 2022 at 05:55
Yes, with that algorithm, at no step is there generated an enumeration of all the natural numbers. But that doesn't prove that there does not exist a ...
September 15, 2022 at 05:36
How is that substantively different from Thompson's lamp? I already responded regarding Thompson's lamp. / I don't know a theorem of set theory that i...
September 15, 2022 at 02:41
A sphere has infinitely many points in it. And is there such a thing as a sphere with an infinite radius? If I'm not mistaken the radius of a sphere i...
September 15, 2022 at 02:23
No, limits use infinite sets. The standard axiomatization of analysis is ZFC. Ordinary modern analysis is decidedly infinitisitic. Maybe you're thinki...
September 15, 2022 at 02:02
Starting at "But a certain reservation" and ending where?
September 15, 2022 at 01:54
Merriam online has definientia with 'series' and 'enumeration'. (There's another definiens closer to your sense, but I don't think it's common, and es...
September 15, 2022 at 01:44