推 math1209 :Trivial case? E = {y}, y≠x. 12/01 23:30
Suppose E is a measurable subset of R^1 and m(E) = 0.
1.Must there be a translate E + x of E that does not intersect E?
2.Must there be a homeomorphism h of R^1 to R^1 such that h(E) does
not intersect E?
謝~
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