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Lempp S., Slaman T. [2007] The complexity of the index sets of ℵ 0 -categorical theories and of Ehrenfeucht theories Advances in logic (North Texas logic conf.), Providence RI: Amer. Math. Soc., 43-47 09.06.97 article Вернуться к поиску

Downey R. G., Hirschfeldt D. R., Lempp S., Solomon R . [2002] Reverse mathematics of the Nielsen-Schreier theorem Proc. Inter. Conf. “Logic and Its Appl.”, devoted to Yu.Ershov and A.I. Mal’cev, (Novosibirsk, 2002), Novosibirsk, NSU, 59-71 05.05.172 article Вернуться к поиску

Hirschfeldt D. R., Kjos-Hanssen B., Jockusch C.G. Jr., Lempp S., Slaman T.A. [2008] The strength of some combinatorial principles related to Ramsey’s theorem for pairs Proc. IMS Workshop “Computational Prospects of Infinity”, (Singapore, 2005), Lect. Notes Series, 15, Institute Math. Sci., Nat. Univ. Singapore,...

Li A. [2000] On a conjecture of Lempp Arch. Math. Logik Grundl., 39, № 4, 281-309 05.09.75 article Вернуться к поиску

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