1. Global Chang’s Conjecture and singular cardinals
- Author
-
Monroe Eskew and Yair Hayut
- Subjects
Aleph ,Conjecture ,General Mathematics ,Chang’s Conjecture ,010102 general mathematics ,Scales ,0102 computer and information sciences ,Algebraic geometry ,01 natural sciences ,Omega ,Combinatorics ,03E35 ,03E10 ,03E55 ,010201 computation theory & mathematics ,03E04 ,Limit (mathematics) ,0101 mathematics ,Diagonal Prikry forcing ,Mathematics ,Research Article - Abstract
We investigate the possibilities of global versions of Chang’s Conjecture that involve singular cardinals. We show some $$\mathrm{ZFC} $$ ZFC limitations on such principles and prove relative to large cardinals that Chang’s Conjecture can consistently hold between all pairs of limit cardinals below $$\aleph _{\omega ^\omega }$$ ℵ ω ω .
- Published
- 2021