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15
Math.TechQA.Club
2026-03-25 04:18:44
100
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Persistency on formulas in Kripke models
Published on
25 Mar 2026 - 4:18
#logic
#constructive-mathematics
#kripke-models
395
Views
Constructing the Integers from the Naturals
Published on
29 Mar 2015 - 9:52
#constructive-mathematics
710
Views
Can I define a bounded sequence whose Banach limit is not unique?
Published on
14 Apr 2015 - 17:48
#functional-analysis
#constructive-mathematics
12.7k
Views
Difference between proof of negation and proof by contradiction
Published on
26 Mar 2026 - 4:32
#logic
#constructive-mathematics
#intuitionistic-logic
501
Views
Intuitionistically, are these inequivalent? $P \rightarrow Q,\; \neg Q \rightarrow \neg P,\; P \wedge \neg Q \rightarrow \bot,\; \neg P \vee Q$
Published on
26 Mar 2026 - 4:34
#logic
#constructive-mathematics
#intuitionistic-logic
786
Views
Explicit homeomorphism between open and closed rational intervals?
Published on
24 May 2015 - 22:08
#general-topology
#constructive-mathematics
841
Views
Limits and Series in Smooth Infinitesimal Analysis
Published on
04 Jun 2015 - 6:34
#real-analysis
#limits
#convergence-divergence
#nonstandard-analysis
#constructive-mathematics
1.6k
Views
Constructive proof of the disjunctive syllogism in Natural Deduction for Intuitionistic Logic
Published on
26 Mar 2026 - 6:06
#proof-verification
#constructive-mathematics
#natural-deduction
#intuitionistic-logic
116
Views
Proving that $\alpha\approx|\alpha|$ is not constructive
Published on
11 Jun 2015 - 14:09
#set-theory
#ordinals
#constructive-mathematics
280
Views
Quantifier-free induction and comparison with $\sqrt{2}$
Published on
12 Jun 2015 - 17:14
#logic
#induction
#quantifiers
#constructive-mathematics
86
Views
Are there sets $S\subseteq\Bbb N$ which are provably non-empty, but we don't know what is $\min S$?
Published on
21 Jul 2015 - 18:26
#constructive-mathematics
5.2k
Views
Why can't you prove the law of the excluded middle in intuitionistic logic (for layman)?
Published on
23 Jul 2015 - 2:00
#logic
#proof-theory
#constructive-mathematics
80
Views
Numerical integration of functions over computable Cauchy sequences
Published on
05 Aug 2015 - 5:22
#real-analysis
#integration
#approximation
#cauchy-sequences
#constructive-mathematics
111
Views
What is a Cauchy sequence of definable reals whose limit is undefinable?
Published on
18 Aug 2015 - 16:50
#real-analysis
#cauchy-sequences
#constructive-mathematics
325
Views
Question about Lemma (2.3) in Constructive Analysis, Bishop and Bridges
Published on
28 Aug 2015 - 11:32
#constructive-mathematics
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