![John Carlos Baez on Twitter: "@_julesh_ However, the Paris-Harrington theorem is unprovable in PA but provable in PA + [induction up to epsilon_0]. The ordinal epsilon_0 is isomorphic to the set of](https://pbs.twimg.com/media/Diua3cOUYAAW0q-.jpg "John Carlos Baez on Twitter: \"@_julesh_ However, the Paris-Harrington theorem is unprovable in PA but provable in PA + [induction up to epsilon_0]. The ordinal epsilon_0 is isomorphic to the set of")
John Carlos Baez on Twitter: "@_julesh_ However, the Paris-Harrington theorem is unprovable in PA but provable in PA + [induction up to epsilon_0]. The ordinal epsilon_0 is isomorphic to the set of
Upper bounds on positional Paris-Harrington games
PDF) The Paris-Harrington Theorem in an NF context | Thomas Forster - Academia.edu
Paris-Harrington Theorem -- from Wolfram MathWorld
Some Bounds for the Ramsey-Paris-Harrington Numbers We first introduce some appropriate notation. Lower case variables will alwa
PDF) Paris-Harrington Tautologies
Paris-Harrington Theorem | |本 | 通販 | Amazon
PDF) Analytic determinacy and 0#. A forcing-free proof of Harrington's theorem
A Classification of Rapidly Growing Ramsey Functions
John Carlos Baez on Twitter: "@stubborncurias @wtgowers Briefly, Ramsey theory is connected to functions that grow so fast they can't be understood using Peano arithmetic! The proof of the Paris-Harrington theorem, sketched
logic - Set-up for the Paris-Harrington Theorem - Mathematics Stack Exchange
Relationship between Kanamori-McAloon Principle and Paris-Harrington Theorem | SpringerLink
The obvious analogue of the Large Ramsey theorem does not translate to Van der Waerden
Some Bounds for the Ramsey-Paris-Harrington Numbers We first introduce some appropriate notation. Lower case variables will alwa
Paris-Harrington Theorem | |本 | 通販 | Amazon
Relationship between Kanamori-McAloon principle and Paris-Harrington theorem
On the Proof Complexity of Paris-Harrington and Off-Diagonal Ramsey Tautologies | ACM Transactions on Computational Logic
On Ramsey-type theorems and their applications*
Combinatorial Unprovability Proofs and Their Model-Theoretic Counterparts
Victoria Noquez
Proof theory -- Paris-Harrington theorem | Whitman College
Arithmetical transfinite induction and hierarchies of functions
arXiv:1806.04917v2 [math.CO] 17 Dec 2018
Paris-Harrington Tautologies
![PDF] An unprovable Ramsey-type theorem | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/6afdc6aebfa4b65b42781e1b86862d28cef05998/4-Figure1-1.png "PDF] An unprovable Ramsey-type theorem | Semantic Scholar")