Examples for Sets

Example: If A = {x R : -4 < x < 3} and B = {x R : -1 < x < 7}, then find A B, A B, A \ B, and comp(A).

A

B = { x

R : -4 < x < 7 }

A

B = { x

R : -1 < x < 3 }

A \ B = { x

R : -4 < x

-1 }

comp( A ) = { x

R : -

< x

-4 }

{ x

R : 3

x <

}

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