Induction problem

Given n positive numbers x1, x2, x3, ... xn, such that x1+x2+x3+....xn$\leqslant $ 1/3, prove by induction that (1-x1)(1-x2)(1-x3)....(1-xn)$\gg $ 2/3


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Erdos Erdos
  • Erdos Erdos

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