共 5 条
[1]
KLEENE SC, 1952, INTRO METAMATHEMATIC
[2]
ROBINSON RM, 1951, J SYMBOLIC LOGIC, V16, P282
[3]
Rosenbloom P. C, 1945, AM MATH MON, V52, P562
[4]
Specker E., 1949, J SYMBOLIC LOGIC, V14, P145