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15
Math.TechQA.Club
2026-03-25 20:13:52
59
Views
The set of all finite sequences in RCA0
Published on
25 Mar 2026 - 20:13
#peano-axioms
#second-order-logic
#reverse-math
56
Views
A Peano system with an infinite initial segment
Published on
25 Mar 2026 - 20:08
#logic
#arithmetic
#peano-axioms
#second-order-logic
#reverse-math
26
Views
subsytems of second order arithmetic
Published on
03 Jul 2022 - 18:37
#arithmetic
#second-order-logic
155
Views
Is the positive fragment of second-order logic will full semantics compact?
Published on
10 Apr 2026 - 8:00
#logic
#solution-verification
#model-theory
#second-order-logic
22
Views
A fast growing functions in $\sf{ACA_0}$ and $\sf{Z_2}$
Published on
29 Mar 2026 - 14:07
#formal-proofs
#second-order-logic
50
Views
EER model or relational model for second order logic statements
Published on
25 Mar 2026 - 12:46
#logic
#mathematical-modeling
#second-order-logic
#relation-algebra
238
Views
Continuous First order logic vs Second order logic
Published on
10 Apr 2026 - 18:48
#logic
#first-order-logic
#real-numbers
#model-theory
#second-order-logic
36
Views
Has it been proven that second order statements cannot be computed in polynomial time? Can some statements be proven to only be second order expresibl
Published on
09 Apr 2026 - 9:48
#first-order-logic
#model-theory
#second-order-logic
#descriptive-complexity
88
Views
Why is does this first-order set of axioms NOT genetically define the natural numbers?
Published on
30 Mar 2026 - 3:56
#number-theory
#first-order-logic
#model-theory
#peano-axioms
#second-order-logic
66
Views
Quantifying Over Functions In Henkin Semantics
Published on
30 Sep 2022 - 18:53
#model-theory
#second-order-logic
161
Views
Is the theory for $\mathbb{R}$ categorical or not?
Published on
10 Apr 2026 - 0:37
#logic
#first-order-logic
#model-theory
#axioms
#second-order-logic
87
Views
What recursive extensions are there of axiomatic second-order logic.
Published on
10 Apr 2026 - 19:00
#logic
#model-theory
#foundations
#second-order-logic
86
Views
Formalizing the notion of a finite number of steps.
Published on
20 Dec 2022 - 21:32
#logic
#first-order-logic
#second-order-logic
85
Views
Non-Henkin non-full semantics for second-order logic
Published on
25 Dec 2022 - 8:12
#logic
#reference-request
#second-order-logic
58
Views
Does Tarskian semantics use a "larger set theory" to implement second order logic?
Published on
07 Apr 2026 - 16:38
#logic
#definition
#model-theory
#second-order-logic
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