Prove or disprove the following statements:

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SUMMARY

The discussion addresses four mathematical statements regarding number theory and set theory. The first statement, concerning odd numbers and prime sums, aligns with the Goldbach conjecture, which remains unproven. The second statement about non-multiples of 3 is confirmed as true through modular arithmetic. The third statement regarding odd numbers and the primality of n² + 4 is disproven with counterexamples. The fourth statement about set unions and intersections is incorrect, as the union of subsets does not necessarily fall within the intersection of their parent sets.

PREREQUISITES
  • Understanding of prime numbers and the Goldbach conjecture
  • Knowledge of modular arithmetic and its applications
  • Familiarity with basic number theory concepts
  • Comprehension of set theory, including unions and intersections
NEXT STEPS
  • Research the Goldbach conjecture and its implications in number theory
  • Study modular arithmetic in depth, focusing on congruences
  • Explore counterexamples in number theory to understand primality
  • Review set theory principles, particularly the properties of unions and intersections
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Mathematicians, educators, students in advanced mathematics, and anyone interested in number theory and set theory concepts.

nddewaters
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a) Every odd number greater than 3 can be written as the sum of two prime numbers.
b) If n is not a multiple of 3, then n² + 2 is a multiple of 3.
c) If n is an odd number, then n² + 4 is prime.
d) If X ⊆ A and Y ⊆ B , then X ∪ Y ⊆ A ∩ B.
 
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