What I am asking is this. Given $n$ amount of lines, there are $m$ amount of intersection points. How many values of $m$ are there? Let me give an example, 5 lines in a plane. Is there a formula for this, and if so, proof?
2026-04-02 15:44:00.1775144640
$n$ amount of lines make $m$ amount of intersection points. How many values of $m$?
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