Mathematics - Discrete Mathematics - Set theory - Set Operations and Notation

10 steps: (1) A SET is a collection of distinct objects. A={1,2,3,4,5}. (2) MEMBERSHIP: 3∈A (3 is in A). 7∉A (7 is not). (3) SUBSET: B⊂A if every element of B is in A. {1,3}⊂{1,2,3,4,5}. (4) UNION: A∪B = elements in A OR B (or both). (5) INTERSECTION: A∩B = elements in BOTH A and B. (6) COMPLEMENT:

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Mathematics - Discrete Mathematics - Set theory - Set Operations and Notation
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Mathematics - Discrete Mathematics - Set theory - Set Operations and Notation

vivmagarwal
vivmagarwalJan 29, 2026

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10 steps: (1) A SET is a collection of distinct objects. A={1,2,3,4,5}. (2) MEMBERSHIP: 3∈A (3 is in A). 7∉A (7 is not). (3) SUBSET: B⊂A if every element of B is in A. {1,3}⊂{1,2,3,4,5}. (4) UNION: A∪B = elements in A OR B (or both). (5) INTERSECTION: A∩B = elements in BOTH A and B. (6) COMPLEMENT:

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MathematicsDiscrete MathematicsStage 9, Grade 9, MYP Grade 9, Class 11, Class 11

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