User:StanS/sandbox

This is the user sandbox of StanS. A user sandbox is a subpage of the user's user page. It serves as a testing spot and page development space for the user and is not an encyclopedia article. Create or edit your own sandbox here.

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Not a homeomorphism onto its image — A map which is not a homeomorphism onto its image: g : (−1.1, 1) → R² with g(t) = (t² − 1, t³ − t)