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Mlček, Josef
Approximations of $\sigma$-classes and $\pi$-classes. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 20 (1979), issue 4, pp. 669-679
MSC: 02K10, 02K99, 03E70, 04A99 | MR 555182 | Zbl 0449.03051
References:
[Č-V 1] K. ČUDA P. VOPĚNKA: Real and imaginary classes in the alternative set theory. Comment. Math. Univ. Carolinae 20 (1979), 639-653. MR 0555180
[S-V 2] A. SOCHOR P. VOPĚNKA: Revealments. to appear in Comment. Math. Univ. Carolinae 21 (1980). MR 0566243
[V] P. VOPĚNKA: Mathematics in the alternative set theory. Teubner-Texte, Leipzig, 1979. MR 0581368
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