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Miklós Schweitzer
2007 Miklós Schweitzer
6
Miklós Schweitzer 2007 Problem 6
Miklós Schweitzer 2007 Problem 6
Source:
March 3, 2017
Miklos Schweitzer
set theory
Problem Statement
For which subsets
A
⊂
R
A\subset \mathbb R
A
⊂
R
is it true that whenever
0
≤
x
0
<
x
1
<
⋯
<
x
n
≤
1
0\leq x_0 < x_1 < \cdots < x_n\leq 1
0
≤
x
0
<
x
1
<
⋯
<
x
n
≤
1
,
n
=
1
,
2
,
…
n=1,2, \ldots
n
=
1
,
2
,
…
, then there exist
y
j
∈
A
y_j\in A
y
j
∈
A
numbers, such that
y
j
+
1
−
y
j
>
x
j
+
1
−
x
j
y_{j+1}-y_j>x_{j+1}-x_j
y
j
+
1
−
y
j
>
x
j
+
1
−
x
j
for all
0
≤
j
<
n
0\leq j < n
0
≤
j
<
n
.(translated by Miklós Maróti)
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