Theorem: Imo2019P2.Imo2019q2Cfg.symm_triangleABC_circumsphere (Compfiles/Imo2019P2.lean)

State before:
V : Type u_1
Pt : Type u_2
inst✝³ : NormedAddCommGroup V
inst✝² : InnerProductSpace ℝ V
inst✝¹ : MetricSpace Pt
inst✝ : NormedAddTorsor V Pt
hd2 : Fact (finrank ℝ V = 2)
cfg : Imo2019q2Cfg V Pt
⊢ circumsphere cfg.symm.triangleABC = circumsphere cfg.triangleABC
Tactic:
rw [symm_triangleABC, Affine.Simplex.circumsphere_reindex]
State after:
no goals