TY - BOOK AU - Takeuti,Gaisi TI - Proof theory SN - 0444104925 (American Elsevier) PY - 1975/// CY - Amsterdam PB - North-Holland KW - Proof theory N1 - Based on a series of lectures given at the Symposium on Intuitionism and Proof Theory held at Buffalo in the summer of 1968; Includes index ER -