TY - Front. Philos. China A1 - LIU Jingxian T1 - Second-Order Positive Comprehension and Frege’s Basic Law V Y1 - 2012-09-05 JF - Frontiers of Philosophy in China JO - Front. Philos. China SP - 367 EP - 377 VL - 7 IS - 3 UR - https://journal.hep.com.cn/fpc N1 - 10.3868/s030-001-012-0022-9 ER -