The independent, unconditional assembly of the third-pass simplified proof.
theorem
ConwaySoifer.Simplified.canonical_impossible
{c : ContactCase}
{T : Configuration}
{r s : ℝ}
(H : Canonical c T r s)
:
Ten congruent closed equilateral triangles covering the whole side-three triangle have common side at least one, by the simplified proof.
theorem
ConwaySoifer.one_le_side_of_cover_simplified
(r : ℝ)
(T : Configuration)
(hside : CommonSide T r)
(hcover : Covers T)
: