Geodesic
The existence of a PCA-set of cardinal $\aleph_1$
Commentationes Mathematicae Universitatis Carolinae, Tome 5 (1964) no. 3, pp. 125-128 Cet article a éte moissonné depuis la source Czech Digital Mathematics Library

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Classification : 02.65, 04.00 
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     author = {Vop\v{e}nka, Petr and Bukovsk\'y, Lev},
     title = {The existence of a {PCA-set} of cardinal $\aleph_1$},
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Vopěnka, Petr; Bukovský, Lev. The existence of a PCA-set of cardinal $\aleph_1$. Commentationes Mathematicae Universitatis Carolinae, Tome 5 (1964) no. 3, pp. 125-128. http://geodesic.mathdoc.fr/item/CMUC_1964_5_3_a2/

[1] J. W. ADDISON: Some consequences of the axiom of contructibility. Fund. Math. vol. 46 (1959). | MR

[2] K. GÖDEL: The consistency of the axiom of choice and the generalized continuum - hypothesis with the axioms of set theory. Annals of Math. Studies No. 3, Princeton 1940.

[3] K. KURATOWSKI: Topologie I. the fourth printing. Warszawa 1958.

[4] N. LUSIN: Sur les ensembles analytiques et leur applications. Paris 1930.

[5] P. VOPĚNKA: Независимость континуум-гипотезы. CMUC 5 (1964), Supplementum I.