n=7 representative hole pattern (1,7) is infeasible
ProvedCirclePackingConstants.n7_pattern_17_infeasiblecircle-packingfinite-certificaten7
For the ordered occupied cells of representative hole pair (1,7), the Appendix-A strict scaled separation constraints and stated cell boxes are inconsistent.
Preamble
import Mathlib.Data.Real.Sqrt import Mathlib.Tactic.Linarith import Mathlib.Tactic.NormNum
Formal statement
theorem CirclePackingConstants.n7_pattern_17_infeasible (x0 y0 x1 y1 x2 y2 x3 y3 x4 y4 x5 y5 x6 y6 : ℝ) (hx0L:(0:ℝ)≤x0)(hx0U:x0≤(1000:ℝ))(hy0L:(0:ℝ)≤y0)(hy0U:y0≤(1000:ℝ)) (hx1L:(2000:ℝ)≤x1)(hx1U:x1≤(3000:ℝ))(hy1L:(0:ℝ)≤y1)(hy1U:y1≤(1000:ℝ)) (hx2L:(0:ℝ)≤x2)(hx2U:x2≤(1000:ℝ))(hy2L:(1000:ℝ)≤y2)(hy2U:y2≤(2000:ℝ)) (hx3L:(1000:ℝ)≤x3)(hx3U:x3≤(2000:ℝ))(hy3L:(1000:ℝ)≤y3)(hy3U:y3≤(2000:ℝ)) (hx4L:(2000:ℝ)≤x4)(hx4U:x4≤(3000:ℝ))(hy4L:(1000:ℝ)≤y4)(hy4U:y4≤(2000:ℝ)) (hx5L:(0:ℝ)≤x5)(hx5U:x5≤(1000:ℝ))(hy5L:(2000:ℝ)≤y5)(hy5U:y5≤(3000:ℝ)) (hx6L:(2000:ℝ)≤x6)(hx6U:x6≤(3000:ℝ))(hy6L:(2000:ℝ)≤y6)(hy6U:y6≤(3000:ℝ)) (hT01:(2584683:ℝ)<(x0-x1)^2+(y0-y1)^2) (hT02:(2584683:ℝ)<(x0-x2)^2+(y0-y2)^2) (hT03:(2584683:ℝ)<(x0-x3)^2+(y0-y3)^2) (hT04:(2584683:ℝ)<(x0-x4)^2+(y0-y4)^2) (hT05:(2584683:ℝ)<(x0-x5)^2+(y0-y5)^2) (hT06:(2584683:ℝ)<(x0-x6)^2+(y0-y6)^2) (hT12:(2584683:ℝ)<(x1-x2)^2+(y1-y2)^2) (hT13:(2584683:ℝ)<(x1-x3)^2+(y1-y3)^2) (hT14:(2584683:ℝ)<(x1-x4)^2+(y1-y4)^2) (hT15:(2584683:ℝ)<(x1-x5)^2+(y1-y5)^2) (hT16:(2584683:ℝ)<(x1-x6)^2+(y1-y6)^2) (hT23:(2584683:ℝ)<(x2-x3)^2+(y2-y3)^2) (hT24:(2584683:ℝ)<(x2-x4)^2+(y2-y4)^2) (hT25:(2584683:ℝ)<(x2-x5)^2+(y2-y5)^2) (hT26:(2584683:ℝ)<(x2-x6)^2+(y2-y6)^2) (hT34:(2584683:ℝ)<(x3-x4)^2+(y3-y4)^2) (hT35:(2584683:ℝ)<(x3-x5)^2+(y3-y5)^2) (hT36:(2584683:ℝ)<(x3-x6)^2+(y3-y6)^2) (hT45:(2584683:ℝ)<(x4-x5)^2+(y4-y5)^2) (hT46:(2584683:ℝ)<(x4-x6)^2+(y4-y6)^2) (hT56:(2584683:ℝ)<(x5-x6)^2+(y5-y6)^2) : False := by sorry
Source
Supplied circles_in_square_n7.pdf, pp. 5–7 and Appendix A, pp. 10–12; (1,3) additionally uses the rigidity argument in §2.