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Consider the following statements I. p...

Consider the following statements
I. `phi in {phi}` II. `{phi} sube phi` Which of the statements given above is/are Correct?

A

A. I only

B

B. II only

C

C. Both I and II

D

D. Neither I nor II

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze the two statements given: **Statement I:** `φ in {φ}` **Statement II:** `{φ} ⊆ φ` ### Step 1: Analyze Statement I - The statement `φ in {φ}` means that the empty set (φ) is an element of the set that contains the empty set. - The set `{φ}` is a set that contains one element, which is the empty set itself. - Therefore, this statement is **correct** because the empty set is indeed an element of the set that contains it. ### Step 2: Analyze Statement II - The statement `{φ} ⊆ φ` means that the set containing the empty set (which is `{φ}`) is a subset of the empty set (φ). - A subset means that every element of the first set must also be an element of the second set. - However, the empty set has no elements, and the set `{φ}` has one element (which is φ). - Therefore, this statement is **incorrect** because the set `{φ}` cannot be a subset of the empty set. ### Conclusion - Statement I is correct. - Statement II is incorrect. - Thus, the answer to the question is that only Statement I is correct. ### Final Answer Only Statement I is correct. ---
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Knowledge Check

  • Consider the following statements 1. phiin{phi}" 2."{phi}subephi Which of the statements given above is/are correct?

    A
    1 only
    B
    2 only
    C
    Both 1 and 2
    D
    Neither 1 nor 2
  • If phi is a null set, then which one of the following is correct?

    A
    `phi=0`
    B
    `phi={0}`
    C
    `phi={phi}`
    D
    `phi={" "}`
  • Let A={phi, {phi},{phi,{phi}}} , where phi is an null set then

    A
    `phisubeA,phiin A,(phi)inA,{phi}subeA` is true
    B
    `phi in A` but `phisubeA`
    C
    `{phi}in A` but `phi subeA`
    D
    A is a null set
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