1. The problem statement, all variables and given/known data prove (0,1)=[0,1] Define f;(0,1)-->R as follows. For n[tex]\in[/tex]natural numbers, n[tex]\geq[/tex]2, f(1/n)=1/(n-1) and for all other x[tex]\in[/tex](0,1), f(x)=x. 2. Relevant equations 3. The attempt at a solution I know I need to start proving f is a 1-1 function from (0,1) into (0,1]. The problem si getting started. I know for 1-1 f(y)=f(z) implies y=z.