height functions
... that height functions allow mathematicians to count and distinguish objects such as rational points of algebraic varieties?
... that <b id="mwAY0"><a href="./Height_function" id="mwAY4" rel="mw:WikiLink" title="Height function">height functions</a></b> allow mathematicians to count and distinguish objects such as <a href="./Rational_point" id="mwAY8" rel="mw:WikiLink" title="Rational point">rational points</a> of <a href="./Algebraic_variety" id="mwAZA" rel="mw:WikiLink" title="Algebraic variety">algebraic varieties</a>?