中科院数学与系统科学研究院
数学研究所
数理逻辑讨论班
报告人: 喻 良 教授(南京大学)
题 目:A recursion theoretical proof of Friedman's conjecture
时 间:2018.04.09(星期一), 14:00--16:00
地 点:数学院南楼N820室
摘 要: We give a new proof of Friedmans conjecture that every uncountable ∆1 1 set of reals has a member of each hyperdegree greater than or equal to the hyperjump.