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For any two different numbers there is an number in between.

I'm trying to write this in predicate logic and have no idea how to do it, since I need 2 variables X and Y? For all x there exists a y such that y - x is positive?

I'm a mong ignore.

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  • $\begingroup$ Hint: for any $x$ and $y$, there is a $z$ such that ... $\endgroup$ – Musa Al-hassy Nov 26 '18 at 11:17
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As a hint, for any two numbers there is a third number in between.

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