Let $P$ be the set of points in the Euclidean plane, and let $L$ be the set of lines in the same plane. Does there exist an one-to-one mapping (injective function) $f : L \to P$ such that for each $\ell \in L$ we have $f(\ell) \in \ell$?
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Tags: geometry, algebra, 3rd edition
Let $P$ be the set of points in the Euclidean plane, and let $L$ be the set of lines in the same plane. Does there exist an one-to-one mapping (injective function) $f : L \to P$ such that for each $\ell \in L$ we have $f(\ell) \in \ell$?