The ordinals of the systems of second order arithmetic with the provably <i>Δ</i><sub>2</sub><sup>1</sup>-comprehension axiom and with the <i>Δ</i><sub>2</sub><sup>1</sup>-comprehension axiom respectively

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ژورنال

عنوان ژورنال: Japanese journal of mathematics :transactions and abstracts

سال: 1973

ISSN: 0075-3432,1861-3624

DOI: 10.4099/jjm1924.41.0_1