1.
Proof Theory: The First Step Into Impredicativity
by Pohlers, Wolfram
ISBN: 9783540693185
List Price: $59.95
2.
Proof Theory: An Introduction (Lecture Notes in Mathematics)
by Wolfram Pohlers, Pohlers
ISBN: 9783540518426
List Price: $52.00
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Proof Theory: An Introduction (Lecture Notes in Mathematics, Volume 1407) [Special Indian Ed...
by Wolfram Pohlers
ISBN: 9783662600610