Relations on the set of Real Numbers

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I need a relation on $\Bbb R$; that is neither reflexive, nor symmetric, nor transitive.

I thought of $a$ ~ $b$ where $a=b^2+1$ (mostly)

Not reflexive because: $a^2 \neq a^2 + 1$ (mostly)

Not symmetric because: if $a=b^2+1$ then $b\neq a^2+1$ (mostly)

Not Transitive because: if $a=b^2+1$ and $b=c^2+1$ then $a\neq c^2+1$ (mostly)

I need a relation on $\Bbb R$; that is transitive and reflexive, not symmetric.

this one I'm stuck on and don't know where to start really.

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