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15
Math.TechQA.Club
2013-12-22 20:25:40
933
Views
Was Fermat's last theorem proved based on Peano's postulates?
Published on
22 Dec 2013 - 20:25
#number-theory
#logic
#soft-question
#foundations
480
Views
Can equinumerosity by defined in monadic second-order logic?
Published on
26 Mar 2026 - 9:39
#logic
#philosophy
#foundations
#higher-order-logic
204
Views
What is $M_x$ in Frege's Basic Law IIb?
Published on
26 Mar 2026 - 9:48
#logic
#math-history
#philosophy
#foundations
#higher-order-logic
210
Views
What is the proof-theoretic strength of the predicative second-order theory of real numbers?
Published on
25 Mar 2026 - 17:20
#logic
#proof-theory
#foundations
#higher-order-logic
#reverse-math
1.2k
Views
Who first proved that the second-order theory of real numbers is categorical?
Published on
26 Mar 2026 - 7:59
#logic
#math-history
#foundations
#higher-order-logic
#real-numbers
212
Views
How to describe free magmas in more structuralist terms?
Published on
29 Mar 2026 - 20:37
#abstract-algebra
#category-theory
#foundations
#type-theory
#magma
162
Views
Has anyone successfully axiomatized the category of finite sets? In such a way that the resulting theory is bi-interpretable with PA.
Published on
28 Mar 2026 - 13:42
#reference-request
#set-theory
#category-theory
#foundations
#peano-axioms
1.8k
Views
Why is zero important?
Published on
31 Mar 2026 - 23:46
#logic
#axioms
#foundations
367
Views
How best to formalize propositions suffering from "size issues"?
Published on
11 Jan 2014 - 17:35
#set-theory
#category-theory
#model-theory
#foundations
837
Views
Ambiguity in the Natural Numbers
Published on
13 Jan 2014 - 20:33
#number-theory
#logic
#foundations
168
Views
What subsystem of second-order arithmetic can interpret the theory of real closed fields?
Published on
25 Mar 2026 - 15:41
#logic
#foundations
#higher-order-logic
#real-numbers
#reverse-math
351
Views
What is the intuition behind $\Delta_1^0$ sets and $\Delta_1^1$ sets?
Published on
26 Mar 2026 - 11:17
#logic
#intuition
#philosophy
#foundations
#higher-order-logic
948
Views
Doubt: Proof of existence of the summation of natural numbers in Landau
Published on
21 Jan 2014 - 2:47
#number-theory
#definition
#foundations
499
Views
Properties of Natural Numbers and Mathematical Induction
Published on
30 Mar 2026 - 0:20
#induction
#formal-languages
#natural-numbers
#foundations
148
Views
Which mathematician has argued that we should move from "set" to "order"?
Published on
25 Mar 2026 - 11:12
#reference-request
#soft-question
#order-theory
#foundations
#mathematicians
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