# Equivalence Relation on R

#### Robb

Problem Statement
Prove that tilde is an equivalence relation on R
Relevant Equations
See attached
Can someone please explain what the tilde represents? We have had no info on this to date. I know it has to do with an equivalence relation but not sure what it represents on its own as in part (a) of the attached. Just want to make sure I'm clear. Thanks!

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#### LCKurtz

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Read $x \sim y$ as "x is related to y".

#### WWGD

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To get you started, you need to show (reflexivity) that x~x or x-x is in $\mathbb Q$ Can you take it from here?

"Equivalence Relation on R"

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