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1- Let S = { ∅, a, {a} }. Determine whether each of these is an element of S, subset of S, neither, or both: {a } , {{a}} , ∅ , {{∅ }, a } , { ∅} , { ∅, a }

- August 19, 2022 - Edwin Tunner

1- Let S = { ∅, a, {a} }.
Determine whether each of these is an element of S, subset of S, neither, or both:
{a } , {{a}} , ∅ , {{∅ }, a } , { ∅} , { ∅, a }
2- Write the following set as set builder
1) A = { 0, 3, 6, 9, 12, …} 2) B = { 1, 2, 4, 8, ……. }
3) C = { -4, -3, -2, -1, 0, 1, 2, 3, 4 } 4) D = { 5,, 8, 11, 14, 17, 20, 23 }

 

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