Embedding lattices in the Kleene degrees
Tom 162 / 1999
Fundamenta Mathematicae 162 (1999), 47-64
DOI: 10.4064/fm-162-1-47-64
Streszczenie
Under ZFC+CH, we prove that some lattices whose cardinalities do not exceed $ℵ_1$ can be embedded in some local structures of Kleene degrees.
