TY - BOOK AU - Troelstra, A. S AU - Schwichtenberg, Helmut TI - Basic proof theory SN - 521779111 SN - 96028596 U1 - 511.3 TRO PY - 1996/// CY - Cambridge PB - Cambridge University Press KW - Proof theory N1 - Includes bibliographical references (p. 309-330) and index ER -