The intermediate value property (IVP): A function has the intermediate value property on an interval [a,b] if for all $x
I think that
f has IVP if and only if f−1 maps connected sets to connected sets.
Please, can you tell me if what I think is correct?
Answer
Take f(x)=x2. Then f is continuous, and thus it has the IVP property but f−1([1,4])=[−2,−1]∪[1,2].
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