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"Hierarchies of Weak Monadic Formulas for Two Successors Arithmetic."
Andrzej Wlodzimierz Mostowski (1987)
- Andrzej Wlodzimierz Mostowski:
Hierarchies of Weak Monadic Formulas for Two Successors Arithmetic. J. Inf. Process. Cybern. 23(10/11): 509-515 (1987)
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