Journal of Symbolic Logic

Sone of George and $V = L$

William G. Fleissner

Abstract

This paper has three parts. In this first part, we formulate and prove from $V = L$ a new combinatorial principle, $\Diamond^{++}$. In the second part, we discuss the topological problem which led to the formulation of $\Diamond^{++}$. Finally, we use $\Diamond^{++}$ to construct a space solving the topological problem.

Article information

Source
J. Symbolic Logic, Volume 48, Issue 1 (1983), 71-77.

Dates
First available in Project Euclid: 6 July 2007

https://projecteuclid.org/euclid.jsl/1183741192

Mathematical Reviews number (MathSciNet)
MR693250

Zentralblatt MATH identifier
0507.03022

JSTOR
Fleissner, William G. Sone of George and $V = L$. J. Symbolic Logic 48 (1983), no. 1, 71--77. https://projecteuclid.org/euclid.jsl/1183741192