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GrandMinnow

['Member']Joined: July 28, 2019 at 07:48Last active: June 29, 2021 at 23:29None discussions169 comments

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June 29, 2021 at 23:35
I see that you are confused about the most basic aspects of mathematics, language and reasoning. On certain points, your understanding is not even at ...
March 16, 2021 at 21:44
I did not say there is a circumstance in which '2' and '1' do not denote numbers. '2+1' is a compound term made from the constants '2' and '1' and the...
March 15, 2021 at 13:56
The denotation of 'the father of Jane Fonda and Peter Fonda' is Henry Fonda. The denotation is not Jane Fonda nor Peter Fonda nor the sibling relation...
March 15, 2021 at 08:30
You are repeating yourself without arguing specifically to the point I made. You argue by mere assertion. My point stands. Given your pattern of ignor...
March 14, 2021 at 19:52
https://plato.stanford.edu/entries/logic-intensional/ And a classic brief introduction to the subject is: Introduction To Mathematical Logic, pages 1-...
March 14, 2021 at 14:57
Aside from your lack of understanding of use/mention, I suspect that another big obstacle for you is that you don't understand that usually mathematic...
March 14, 2021 at 04:47
When we say that n is even we mean that n is a natural number such there exists a natural number k such that n = 2k. But, yes, that does imply that a ...
March 14, 2021 at 04:31
But you don't know anything about the formulation of classical mathematics. But your account of the meaning of mathematics is not compatible with the ...
March 14, 2021 at 04:26
The chairs are objects. And the mathematical object that is the number of chairs is the number 6. And the set of chairs also is an object, and it has ...
March 14, 2021 at 02:43
Please do not misrepresent what I said. I said explicitly that '1' and '2' do each refer to a distinct object. My remarks should not be victim to misr...
March 14, 2021 at 02:15
What is meant by whom? What is meant by mathematicians is not what is meant by you. I haven't said here what is necessarily correct. There are formula...
March 14, 2021 at 02:13
I am telling you the terminology and framework of ordinary axiomatic mathematics. 'qualifier' is not the terminology used. Of course, you may set up y...
March 13, 2021 at 23:48
sqrt is an operation. sqrt(2) is the object that is the result of the operation applied to the object 2. sqrt is the operation, and 2 is the argument ...
March 13, 2021 at 19:03
Algorithms that execute to completion do so in a finite number of steps. As far as I know, what you may have in mind is not an algorithm but rather it...
March 13, 2021 at 01:32
Equivalence classes of Cauchy sequences. This has been mentioned to you previously in this thread (1) We don't assume they exist. We prove they exist....
March 13, 2021 at 01:16
'The reals' means 'the real numbers'. We construct the set of real numbers. It doesn't make sense to debate whether a real number is a number. Mathema...
March 13, 2021 at 01:04
My rough impression is that professionals in the field of philosophy of mathematics usually do know about mathematics. Which philosophers in, say, the...
March 12, 2021 at 04:36
Whatever you have in mind linguistically is irrelevant since the sentence is linguistically perfectly correct. Even more simply: There is a unique obj...
March 12, 2021 at 04:31
I didn't write "E!x^". It doesn't make sense. I wrote "E!x x^2 = 2".
March 11, 2021 at 17:09
"There exists an object that has the property that its square is equal to 2" is perfectly fine English.
March 11, 2021 at 03:18
E!x x^2 = 2 is a theorem of ordinary mathematics. Anyway, I made my point that existence is not a predicate..
March 11, 2021 at 03:04
In casual discussion, mathematicians may say things like "the square root of 2 exists". But in a more careful mathematical context, we don't say that....
March 10, 2021 at 20:35
Infinitesimals are made rigorous with non-standard analysis derived with techniques of model theory or with internal set theory.
March 09, 2021 at 17:16
You don't know what set theory is. You don't know about the symbolic logic in which set theory is formulated. You don't know what the language of set ...
March 08, 2021 at 03:22
I addressed that already. You blew right past it.
March 08, 2021 at 03:15
I don't think in a framework of "infinite processes being completed or not completed". The notion of "an infinite process being completed or not compl...
March 08, 2021 at 03:15
It's worth noting that the challenges in the first post of this thread have been met. But hell if I know whether the poster understands that by now.
March 07, 2021 at 04:18
1. Is flush with critiques of a subject while he is unwilling to inform himself of the basics of that subject by even reading an introductory textbook...
March 07, 2021 at 03:59
I appreciate that threads are open to posting by both well informed and less informed posters. That doesn't entail that misinformation, misconception,...
March 07, 2021 at 03:24
That is a central point that I have made twice now. You have not responded.
March 06, 2021 at 23:23
A possibility occurs to me: When people who don't study the actual mathematics of set theory hear about such things as the axiom of infinity or encoun...
March 06, 2021 at 23:11
As I alluded previously, your "reinterpret an axiom" has no apparent meaning (surely not rigorous) other than as a vague personal notion. Axioms are f...
March 06, 2021 at 22:56
You're talking about how you'd like mathematics to be, but you do it entirely in a castles-in-the-air manner without regard to even a minimal understa...
March 06, 2021 at 03:26
The context of modern logic and mathematics involves formal axiomatization. Anyone can come up with all kinds of philosophical perspectives on mathema...
March 05, 2021 at 03:10
I meant to write " does not require ." I edited my post just now upon reading your post and realizing that I mistakenly left out the word 'not'.
March 04, 2021 at 23:39
The proof that there is a real number x such that x^2 = 2 comes later in the history of mathematics. It is found in many a textbook in introductory re...
March 04, 2021 at 21:52
We separate two questions: (1) Is there a real number x such that x^2 = 2? (2) Supposing there is a real number x such that x^2 = 2, is that real numb...
March 04, 2021 at 21:27
There are myriad ways to spout nonsense, fallacy, and misinformation such as yours, but fewer distinctive ways to state accuracies. So I am at a disad...
February 26, 2021 at 22:32
In order to meaningfully discuss incompleteness, you need to read a textbook in mathematical logic. Without such background, your notions and terminol...
February 25, 2021 at 21:08
(1) By 'alphabet' in this context we mean the set of symbols of the formal language. The concern is not with the number of alphabets, but rather with ...
February 25, 2021 at 17:34
Note: I make use of some of the sharpenings of certain notions and specifics that came after Godel's original paper. (1) Godel-Rosser pertains to syst...
February 25, 2021 at 17:29
(1) There is nothing incorrect in what you quoted. (2) Since not just Wikipedia (which itself is not a reliable source on mathematics and certain othe...
January 08, 2021 at 05:38
No, the left side does not represent an operation. The left side represents the value of an operation with an operand pair. The value of the operation...
January 08, 2021 at 03:49
You're confused. If the left and the right refer to the same thing, then the formula is true (or satisfied). And when the left and the right refer to ...
January 08, 2021 at 03:27
No, the laws of identity are not violated in mathematics, no matter what we take the ontological status of the referents to be. Or, please state preci...
January 08, 2021 at 03:21
I didn't say that they necessarily refer to the same object. I said the formula is satisfied when they refer to the same object. The fixed semantics f...
January 08, 2021 at 03:18
In the vast ordinary sense in mathematics, an equation (an identity statement) is a formula of the form: T=S where 'T' and 'S' are terms. The equation...
January 08, 2021 at 02:11
Points to make clear: (1) Ordinary mathematics, formally and informally, uses the law of identity. This is the use of first order logic with identity ...
January 07, 2021 at 23:45