σ-Continuous Functions and Related Cardinal Characteristics of the Continuum
نویسندگان
چکیده
منابع مشابه
Ultrafilters and Cardinal Characteristics of the Continuum
Convention 1. As is customary in set theory, we identify each natural number with the set of its predecessors; in particular, 2 = {0, 1}. We also follow the set-theoretic convention that the set of all natural numbers is denoted by ω. For any sets X and Y , we write X for the set of all functions from Y into X. This convention creates an ambiguity when the sets X and Y are numbers, but the cont...
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ژورنال
عنوان ژورنال: Tatra Mountains Mathematical Publications
سال: 2020
ISSN: 1210-3195
DOI: 10.2478/tmmp-2020-0014