How to Prove A Union B in Set Theory?

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SUMMARY

The discussion focuses on proving the union of two sets, A and B, in set theory. The user, Higgenz, seeks clarification on whether the expression "A∪B" is equivalent to "A or B." The consensus is that to prove A∪B, one must demonstrate that at least one element belongs to either set A or set B. This foundational concept is critical in understanding set operations and their implications in mathematical proofs.

PREREQUISITES
  • Understanding of basic set theory concepts
  • Familiarity with union and intersection of sets
  • Knowledge of logical operators in mathematics
  • Ability to construct mathematical proofs
NEXT STEPS
  • Study the properties of set unions and intersections
  • Learn about Venn diagrams for visualizing set relationships
  • Explore the concept of set complements
  • Practice constructing formal proofs in set theory
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Students of mathematics, educators teaching set theory, and anyone interested in foundational concepts of logic and proofs in mathematics.

Mdhiggenz
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Homework Statement



How would I prove that A\cup B?


Thank you

Higgenz



Homework Equations





The Attempt at a Solution

 
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Do you mean "A or B"? by proving at least one of them is true.
 

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