Question

Prove in detail the following mappings from R to R
Let R be the set of real numbers.
Φ1: R→R^+
Φ1 ={x,e^x) ; x∈R}
Φ2: R→R^+
Φ2= { (x,α^2);x∈R}
Identity mapping
iA:A→A
Alpha:Z→Z
Alpha(n)=2n
Prove the given mapping

Answer 1

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