TY  - GEN
AU  - Takeuti, Gaisi
AU  - Yasugi, Mariko
TI  - The Ordinals of the Systems of Second order Arithmetric With the Provably (delta 1/2) Comprehension Axiom and With the (delta 1/2)    Comprehension Axiom Respectively
PY  - 1970///
CY  - Carnegie - Mellon
PB  - Carnegie - Mellon University
N1  - Contine bibliografie; Lucrarea este multigrafiata
ER  -