Usuba's extendible cardinal
Abstract
Answering a question of Usuba, we show that an extendible cardinal can be preserved by a set forcing that is not a small forcing.
0
Turn this paper into a lesson
ArcXiv compiles a structured reading guide from this paper's metadata: plain-English importance, contributions, prerequisite concepts, which sections to read first, flashcards, and a quiz. Grounded in the abstract, never invented.