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4 cards from this section. Quick, good the night before a test.
What is the intersection of R1 = {(1, 2), (2, 3)} and R2 = {(2, 3), (3, 4)}?
Find the common pairs present in both relations.
If R3 = {(a, b), (b, c)} and R4 = {(b, c), (c, d)}, what is R3 ∪ R4?
Combine all pairs from both sets.
The union of two relations R and S includes pairs where:
Remember what union means in set theory.
True or False: The intersection of R1 and R2 can be empty if both relations are completely disjoint.
Think about what intersection means.
Given R = {(1, 2), (2, 3), (3, 4)} and S = {(2, 3), (3, 5)}, compute R o S and explore the meaning behind it.
Think about how pairs connect to meet through mutual relationships.
Construct and explain the symmetric closure of R = {(1, 2), (2, 3)}.
Consider what happens to asymmetric relations!
6 more questions in this section. Enroll free to practise them all.
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