Aspects of Definability for Equivalence Relations
<p>This thesis will show that in the constructible universe L and set forcing extensions of L, there are no almost Borel reductions of the well-ordering equivalence relation into the admissibility equivalence relation and no Borel reductions of the isomorphism relation of any counterexample to...
Internet
https://thesis.library.caltech.edu/10236/1/chan_william_2017.pdfChan, William (2017) Aspects of Definability for Equivalence Relations. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/Z90P0X3M. https://resolver.caltech.edu/CaltechTHESIS:05312017-155530848 <https://resolver.caltech.edu/CaltechTHESIS:05312017-155530848>