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Zbornik RadovaPublisher: Matematički institut SANU, BeogradISSN: 0351-9406Issue: 22(30)Date: 2025 |
AbstractKeywords: Turing degrees; forcingMSC: 03-02; 03E35; 03D28DOI: https://doi.org/10.64191/zr24040410110
AbstractKeywords: Rudin--Keisler reducibility; Tukey reducibility; selective ultrafilter; stable ordered-union ultrafilter; P-point ultrafilterMSC: 03E35; 05D10; 22A15; 54D35; 03E40DOI: https://doi.org/10.64191/zr24040410111
AbstractKeywords: proper forcing axiom; Martin's maximum; semi-sta\-tionary reflection principle; narrow system property; guessing models; indexed square; indecomposable ultrafilters; finest partition; C-se-quence number; ascent pathMSC: 03E35; 03E57DOI: https://doi.org/10.64191/zr24040410112
AbstractKeywords: club filters; non-stationary ideals; $\Delta_1$-definability; Canary trees; condensation principles; generalized descriptive set theory; stationary reflectionMSC: 03E47 03E05; 03E35; 03E45DOI: https://doi.org/10.64191/zr24040410113
AbstractKeywords: minimal walk; L space; L group; L vector space; L field; strong negative partition relationMSC: 54D20; 54H13; 03E02; 03E75DOI: https://doi.org/10.64191/zr24040410114
AbstractKeywords: ultrafilter; Stone-Čech compactification; nonstandard extension; divisibility; congruenceMSC: 54-02; 54D80; 11U10; 54D35; 03H15DOI: https://doi.org/10.64191/zr24040410115
AbstractKeywords: side condition method; the proper forcing axiom; the $\in$-collapse; strong properness; Y-properness; the open coloring axiom; the P-ideal Dichotomy; ideal-based forcings; $\Box(\kappa)$; the mapping reflection principle; weak club guessingMSC: 03E35; 03E50; 03E17DOI: https://doi.org/10.64191/zr24040410116
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