【摘 要】
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The setting-time reducibility
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The setting-time reducibility 2.Later,we showed this property can be true for 2-c.e.sets.In the same paper,Csima also showed that for any n>1,there is a properly n-c.e.set A with two n-c.e.approximations {As}s and {As}s such that any total computable function f,m(A)dominates f(m(A)).Recently,we proved that this is also true for properly w-c.e.sets.
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