The generalized Borel conjecture and strongly proper orders
نویسندگان
چکیده
منابع مشابه
The Generalized Borel Conjecture and Strongly Proper Orders
The Borel Conjecture is the statement that C = [R]<ü,i , where C is the class of strong measure zero sets; it is known to be independent of ZFC. The Generalized Borel Conjecture is the statement that C = [R]<c. We show that this statement is also independent. The construction involves forcing with an «2-stage iteration of strongly proper orders; this latter class of orders is shown to include s...
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ژورنال
عنوان ژورنال: Transactions of the American Mathematical Society
سال: 1989
ISSN: 0002-9947
DOI: 10.1090/s0002-9947-1989-0982239-x