Effective Mathematics of the Uncountable
[BOOK DESCRIPTION]
Classical computable model theory is most naturally concerned with countable domains. There are, however, several methods - some old, some new - that have extended its basic concepts to uncountable structures. Unlike in the classical case, however, no single dominant approach has emerged, and different methods reveal different aspects of the computable content of uncountable mathematics. This book contains introductions to eight major approaches to computable uncountable mathematics: descriptive set theory; infinite time Turing machines; Blum-Shub-Smale computability; Sigma-definability; computability theory on admissible ordinals; E-recursion theory; local computability; and uncountable reverse mathematics. This book provides an authoritative and multifaceted introduction to this exciting new area of research that is still in its early stages. It is ideal as both an introductory text for graduate and advanced undergraduate students and a source of interesting new approaches for researchers in computability theory and related areas.
[TABLE OF CONTENTS]
Preface vii
Introduction 1 (13)
Some results on R-computable structures 14 (19)
Wesley Calvert
John E. Porter
Infinite time Turing machines and an 33 (17)
application to the hierarchy of equivalence
relations on the reals
Samuel Coskey
Joel David Hamkins
Computable structure theory using 50 (31)
admissible recursion theory on ωi
using admissibility
Noam Greenberg
Julia F. Knight
Local computability and uncountable 81 (43)
structures
Russell Miller
Borel structures: a brief survey 124(11)
Antonio Montalban
Andre Nies
E-recursive intuitions 135(15)
Gerald E. Sacks
Reverse mathematics, countable and 150(14)
uncountable: a computational approach
Richard A. Shore
Effective model theory: an approach via 164
Σ-definability
Alexey Stukachev