What are the fundamental groups of
- $\Bbb R^3 \setminus {\rm (two\ parallel\ lines)}$ and
- $\Bbb R^3 \setminus {\rm (two\ intersecting\ lines)}$.
How do I compute those groups?
Thank you very much.
2026-03-26 02:52:03.1774493523
Finding fundamental groups.
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