Foreiuord to the Neiu Edition by Douglas R. Hofstadter ix
Acknowledgments xxiii
ii The Problem of Consistency 7
iii Absolute Proofs of Consistency 25
iv The Systematic Codification of Formal Logic 37
v An Example of a Successful Absolute Proof of
vi The Idea of Mapping and Its Use in Mathematics 57
vii GódePs Proofs 68
a Godeł numbering 68
b The arithmedzadon of meta-mathemadcs 80
c The heart of Gódels argument 92
viii Concluding Reflecdons 109
Appendix: Notes 114
Index 127
VII