- #1
kathrynag
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Homework Statement
Use the fact that every real number has a decimal expansion to produce a 1-1 function that maps S into (0,1). Discuss whether the formulated function is onto.
Homework Equations
S={(0,1):0<x, y<1}
The Attempt at a Solution
I don't even know where to begin. The whole decimal expansion business has me confused.