PI 0/1 CLASSES AND DEGREES OF THEORIES

[1] EHRENFEUCHT A, 1961, B ACAD POLON SC SMAP, V9, P17

[2] Feller W., 1966, INTRO PROBABILITY TH, V2

[3] Friedberg R., 1957, J SYMBOLIC LOGIC, V22, P159

[4] FRIEDMAN H, TO BE PUBLISHED

[5] Gordon Rice H., 1956, T AM MATH SOC, V83, P277

[6] Hanf W. P., 1965, THEORY MODELS, P132

[7] Henkin L., 1949, J SYMBOLIC LOGIC, V14, P159

[8] Janiczak A., 1953, FUND MATH, V40, P131

[9] COUNTABLE RETRACING FUNCTIONS AND PI0/2 PREDICATES [J]. PACIFIC JOURNAL OF MATHEMATICS, 1969, 30 (01) : 67 - &

[10] MINIMAL PAIR OF PIO/1-CLASSES [J]. JOURNAL OF SYMBOLIC LOGIC, 1971, 36 (01) : 66 - &

[1] EHRENFEUCHT A, 1961, B ACAD POLON SC SMAP, V9, P17

[2] Feller W., 1966, INTRO PROBABILITY TH, V2

[3] Friedberg R., 1957, J SYMBOLIC LOGIC, V22, P159

[4] FRIEDMAN H, TO BE PUBLISHED

[5] Gordon Rice H., 1956, T AM MATH SOC, V83, P277

[6] Hanf W. P., 1965, THEORY MODELS, P132

[7] Henkin L., 1949, J SYMBOLIC LOGIC, V14, P159

[8] Janiczak A., 1953, FUND MATH, V40, P131

[9] COUNTABLE RETRACING FUNCTIONS AND PI0/2 PREDICATES [J]. PACIFIC JOURNAL OF MATHEMATICS, 1969, 30 (01) : 67 - &

[10] MINIMAL PAIR OF PIO/1-CLASSES [J]. JOURNAL OF SYMBOLIC LOGIC, 1971, 36 (01) : 66 - &