TY - BOOK AU - Hrbacek, karel AU - TI - Introduction to set theory U1 - 510.223 PY - 1984/// CY - New York PB - Marcel Dekker KW - Mathematics KW - Number theory KW - Set theory KW - Group theory KW - Mathematical sciences KW - Pure mathematics KW - Fundamentals of mathematics KW - Arithmetic & algebra N1 - Monographs and text books in pure and applied mathematics, 85 ER -