Abstract
We investigate the statement "all automorphisms of P(λ)=[λ]<λ are trivial". We show that MA implies the statement for regular uncountable < 2 0 ; that the statement is false for measurable λ if 2λ = λ+; and that for "densely trivial"it can be forced (together with 2λ = λ++) for inaccessible λ.
Original language | English |
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Journal | Journal of Symbolic Logic |
DOIs | |
State | Accepted/In press - 2024 |
Bibliographical note
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