Several versions of self-embedding theorem
Mathematical Institute, Tohoku University
In this talk, I will give several versions of Friedman’s self-embedding theorem which can characterize subsystems of Peano arithmetic. Similarly, I will also give several variations of Tanaka’s self-embedding theorem to characterize subsystems of second-order arithmetic.
Keita Yokoyama is an assistant professor in the Mathematical Institute at Tohoku University in Sendai, Japan. Previously he held a postdoctoral appointment at Pennsylvania State University.