例句與造句

1. Each lightface Borel set has infinitely many distinct codes.
2. It includes the study of lightface pointclasses, and is closely related to hyperarithmetical theory.
3. In particular, it focuses on lightface analogues of hierarchies of classical descriptive set theory.
4. The lightface Borel hierarchy extends the arithmetical hierarchy of subsets of an effective Polish space.
5. \Delta ^ 1 _ 2 ( lightface ) determinacy is equiconsistent with a Woodin cardinal.
6. It's difficult to find lightface in a sentence. 用lightface造句挺難的
7. This is the origin of the Church-Kleene ordinal in the definition of the lightface hierarchy.
8. The Greek letters here are lightface symbols, which indicates that the formulas do not contain set parameters.
9. In fact, the strategy for a universal lightface analytic game has the same Turing degree as 0 #.
10. The "'lightface Borel hierarchy "'is an effective version of the boldface Borel hierarchy.
11. A code for a lightface Borel set gives complete information about how to recover the set from sets of smaller rank.
12. This relationship between lightface sets and their indices is used to extend the lightface Borel hierarchy into the transfinite, via recursive ordinals.
13. This relationship between lightface sets and their indices is used to extend the lightface Borel hierarchy into the transfinite, via recursive ordinals.
14. Donald A . Martin and Leo Harrington have shown that the existence of 0 # is equivalent to the determinacy of lightface analytic games.
15. A set is lightface \ Pi ^ 0 _ 1 if it is the complement of a \ Sigma ^ 0 _ 1 set.
16. :First of all, to be clear, only the italic lightface portion of the question above is a quote from Open market operation.
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