Non-absoluteness of Hjorth's cardinal characterization

Lücke, P; Souldatos, I

Lücke, P (通讯作者),Univ Barcelona, Dept Matemat & Informat, Barcelona 08007, Spain.

FUNDAMENTA MATHEMATICAE, 2023; 262 (2): 105

Abstract

In [J. Math. Log. 2 (2002), 113-144], Hjorth proved that for every countable ordinal alpha, there exists a complete L omega 1,omega-sentence phi alpha......

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