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theorem proved term proof

D1_no_linking

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formal statement (Lean)

 297theorem D1_no_linking : ¬SupportsNontrivialLinking 1 :=

proof body

Term-mode proof.

 298  fun h => absurd (linking_requires_D3 1 h) (by norm_num)
 299
 300/-- D = 2 does not support linking (Jordan curve theorem — curves separate
 301    the plane, linking group H̃^0(S¹) = 0). -/

depends on (5)

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