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15
Math.TechQA.Club
2023-07-16 09:11:35
99
Views
Proof that $(V_{\omega},\in)\models ZFC-Inf+\neg Inf$.
Published on
16 Jul 2023 - 9:11
#set-theory
#model-theory
56
Views
Does every real-closed field satisfy the first-order least upper bound axiom schema?
Published on
26 Mar 2026 - 0:52
#model-theory
#ordered-fields
92
Views
prime extensions
Published on
17 Jul 2023 - 20:13
#model-theory
36
Views
Has numerosity-preserving functions between structures been studied before?
Published on
17 Jul 2023 - 23:03
#reference-request
#model-theory
91
Views
Has this model theory definition been studied in the literature?
Published on
17 Jul 2023 - 23:10
#definition
#model-theory
71
Views
A basis for the equational identities of unordered $n$-tuples
Published on
29 Mar 2026 - 16:49
#set-theory
#model-theory
#universal-algebra
153
Views
Question regarding Skolem's Paradox
Published on
21 Jul 2023 - 4:34
#logic
#set-theory
#model-theory
180
Views
Undefinable subset of $(\mathbb{N}, <)$
Published on
22 Jul 2023 - 10:32
#model-theory
175
Views
If Goldbach's conjecture G is undecidable in PA, then can we prove $\mathbb N\models G$?
Published on
25 Mar 2026 - 4:40
#first-order-logic
#model-theory
#peano-axioms
#incompleteness
#nonstandard-models
93
Views
Let $\pi$ be a $ℍ_$-recursive projection of $ℍ_$ into . What does $ℍ_{(, Domain(\pi))}$ contain?
Published on
30 Mar 2026 - 7:28
#set-theory
#model-theory
#computability
108
Views
Are the natural numbers definable in ZFC-Inf
Published on
26 Mar 2026 - 22:14
#set-theory
#model-theory
#peano-axioms
#incompleteness
41
Views
Strong homogeneity of order type of real closed fields
Published on
26 Mar 2026 - 0:53
#first-order-logic
#model-theory
#ordered-fields
69
Views
How are stable homogeneous structures interpreted in dense linear order?
Published on
26 Jul 2023 - 22:04
#reference-request
#model-theory
50
Views
Construct a sentence involving a model's function's injective character implicating the model's universe's infinity
Published on
27 Jul 2023 - 4:28
#logic
#first-order-logic
#model-theory
189
Views
What is a "class model" exactly?
Published on
25 Mar 2026 - 23:35
#set-theory
#first-order-logic
#model-theory
#meta-math
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