Some algebraic equivalent forms of $\mathbb {R}\subseteq L$
Tom 246 / 2019
Fundamenta Mathematicae 246 (2019), 161-180
MSC: Primary 03E15; Secondary 03E50.
DOI: 10.4064/fm643-10-2018
Opublikowany online: 29 May 2019
Streszczenie
We study $\Sigma ^1_2$ definable counterparts for some algebraic equivalent forms of the Continuum Hypothesis. All turn out to be equivalent to “all reals are constructible”.
