TY - BOOK AU - Pohlers,Wolfram TI - Proof theory: the first step into impredicativity T2 - Universitext SN - 9783540693185 (pbk.) U1 - 511.36 POH PY - 2009/// CY - Berlin PB - Springer KW - Proof theory KW - Beweistheorie KW - swd N1 - TBH/SINV00482/15 Euro 59.99; Includes bibliographical references (p. 357-361) and index ER -