What are the basic concepts of set theory?
Set theory is a branch of mathematical logic that studies sets, which are collections of objects. Key concepts include sets, subsets, unions, intersections, and complements.
Can you explain what a subset is?
A subset is a set where all its elements are also contained in another set. For example, if A = {1, 2} and B = {1, 2, 3}, then A is a subset of B.
What is the difference between union and intersection?
The union of two sets is a set containing all elements from both sets, while the intersection contains only the elements that are in both sets.
Can you give an example of a union and an intersection?
Sure! If A = {1, 2} and B = {2, 3}, then the union A ∪ B = {1, 2, 3} and the intersection A ∩ B = {2}.
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