Cabal Seminar 76 77

Inhalt
Notes on the theory of scales.- Partially playful universes.- Ad and projective ordinals.- A ? 3 1 coding of the subsets of ??.- Wadge degrees and descriptive set theory.- The independence of DC from AD.- Inductive scales on inductive sets.- On Vaught's conjecture.- On recursion in and semi-spector classes.- On spector classes.