[See] Let A = 1, 1, 2. Which of the following statements are true? 1in A 1in A 1subseteq A 1subseteq A 2in A 2subseteq A 2subseteq A 2subset


Question: Let A = {1, {1}, {2}}. Which of the following statements are true?

  1. \(1\in A\)
  2. \(\{1\}\in A\)
  3. \(\{1\}\subseteq A\)
  4. \(\{\{1\}\}\subseteq A\)
  5. \(\{2\}\in A\)
  6. \(\{2\}\subseteq A\)
  7. \(\{\{2\}\}\subseteq A\)
  8. \(\{\{2\}\}\subset A\)

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