Exercise 1.2.3. Decide which of the following represent true statements about the nature of sets. For any that are false, provide a specific example where the statement in question does not hold. (a) If A₁ 2 A2 2 A3 2 A4 are all sets containing an infinite number of elements, then the intersection 1 An is infinite as well. are all finite, nonempty sets of real numbers, 1 An is finite and nonempty. (b) If A₁ 2 A₂ 2 A3 2 A4 then the intersection (c) An (BUC) = (ANB) UC.

Advanced Engineering Mathematics
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Chapter2: Second-order Linear Odes
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Exercise 1.2.3. Decide which of the following represent true statements about
the nature of sets. For any that are false, provide a specific example where the
statement in question does not hold.
(a) If A₁ 2 A₂ 2 A3 2 A4 are all sets containing an infinite number of
elements, then the intersection 1 An is infinite as well.
(b) If A₁ 2 A2 2 A3 2 A4 are all finite, nonempty sets of real numbers,
then the intersection 1 An is finite and nonempty.
(c) An (BUC) = (An B) UC.
(d) An (BNC) = (ANB) nC.
(e) An (BUC) = (ANB) u (Anc).
Transcribed Image Text:Exercise 1.2.3. Decide which of the following represent true statements about the nature of sets. For any that are false, provide a specific example where the statement in question does not hold. (a) If A₁ 2 A₂ 2 A3 2 A4 are all sets containing an infinite number of elements, then the intersection 1 An is infinite as well. (b) If A₁ 2 A2 2 A3 2 A4 are all finite, nonempty sets of real numbers, then the intersection 1 An is finite and nonempty. (c) An (BUC) = (An B) UC. (d) An (BNC) = (ANB) nC. (e) An (BUC) = (ANB) u (Anc).
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