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theorem proved term proof

wallpaperJ_p1_pos

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formal statement (Lean)

 178theorem wallpaperJ_p1_pos : 0 < wallpaperJ .p1 := by

proof body

Term-mode proof.

 179  apply wallpaperJ_pos_of_ne_one
 180  unfold symmetryRatio orbitCount maxOrbitCount
 181  norm_num
 182
 183/-- `p6m` strictly minimizes wallpaper J-cost over the seventeen groups
 184(strict for any group whose ratio is not `1`). -/

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