Statement:

Ramsey's Theorem I: If \(A\) is an infinite set and the family of all 2 element subsets of \(A\) is partitioned into 2 sets \(X\) and \(Y\), then there is an infinite subset \(B\subseteq A\) such that all 2 element subsets of \(B\) belong to \(X\) or all 2 element subsets of \(B\) belong to \(Y\). (Also, see Form 325.), Jech [1973b], p 164 prob 11.20.

Howard_Rubin_Number: 17

Parameter(s): This form does not depend on parameters

This form's transferability is: Transferable

This form's negation transferability is: Negation Transferable

Article Citations:
Ramsey-1929: On a problem of formal logic

Book references
The Axiom of Choice, Jech, T., 1973b

Note connections:

The following forms are listed as conclusions of this form class in rfb1: 132, 292, 304, 9, 17, 18, 125, 53, 62, 69, 64, 84, 124, 126, 127, 128, 146, 155, 156, 177, 200, 267, 290, 157, 278, 106, 131,

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