2 papers
math.LO2025
The Provably Total Set-Recursive Functions of KPl
Juan Pablo Aguilera, Anton Fernández, Joost J. Joosten
Using relativized ordinal analysis, we give a proof-theoretic characterization of the provably total set-recursive-from- functions of KPl and related theories.
math.LO2023
Reflection Properties of Ordinals in Generic Extensions
Juan P. Aguilera, Corey Bacal Switzer
We study the question of when a given countable ordinal is - or -reflecting in models which are neither models nor the constructible universe, focus…