(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Prove the intervals of real numbers (1,3) and (5,15) have the same cardinality by finding an appropriate bijective function of f:(1,3) ->(5,15) and verifying it is 1-1 and onto

2. Relevant equations

I know there are multiple ways to prove one to one and onto im not sure

which one to use

However, what do i do to prove that cardinality are both infinite?

3. The attempt at a solution

Assume the intervals (1,3) and (5,15)

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# Homework Help: Show intervals of real numbers have the same cardinality

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