can there be 2 ranges in one set

aika cruz 2022-10-01

can there be 2 ranges in one set builder notation? for example {y|y >3 but ≥ 3.567}  (with 3 being the value of HA and 3.567 as the value of y-coordinate of extremum)

 

what if there is no HA, but there is an extremum? is it possible for the range to look like this? {y|y ≥ 3.567} 
 

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