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four_dim_euler_brick_existence

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Is there an Euler brick in $4$-dimensional space?

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Lean 4 Statement 
theorem four_dim_euler_brick_existence :
    answer(sorry) ↔ ∃ sides : Fin 4 → ℕ+, IsEulerHyperBrick 4 sides
ID: Wikipedia__EulerBrick__four_dim_euler_brick_existence
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