OAI/Geometry/HyperbolicGroups/BasedTriangleContraction.lean

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11 declarations, 0 contain sorry, 0 declared as axioms

The actual triangular pi2 obstruction has a literal contracting prism when the three oriented edge corrections have the prescribed coboundary.

  1. lemma OAI.HyperbolicObstruction.BasedTriangleContraction.top_const line 22
  2. def OAI.HyperbolicObstruction.BasedTriangleContraction.theta line 26
  3. lemma OAI.HyperbolicObstruction.BasedTriangleContraction.corrected_zero line 33
  4. def OAI.HyperbolicObstruction.BasedTriangleContraction.square line 44
  5. lemma OAI.HyperbolicObstruction.BasedTriangleContraction.square_top line 50
  6. def OAI.HyperbolicObstruction.BasedTriangleContraction.contraction line 60
  7. lemma OAI.HyperbolicObstruction.BasedTriangleContraction.contraction_initial line 65
  8. lemma OAI.HyperbolicObstruction.BasedTriangleContraction.contraction_final line 70
  9. lemma OAI.HyperbolicObstruction.BasedTriangleContraction.contraction_bottom line 75
  10. lemma OAI.HyperbolicObstruction.BasedTriangleContraction.contraction_left line 80
  11. lemma OAI.HyperbolicObstruction.BasedTriangleContraction.contraction_right line 85