9 lines
343 B
Text
9 lines
343 B
Text
open Lean Grind
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example [CommRing α] (a : α) : a^0 = 1 := by grind
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example [CommSemiring α] [AddRightCancel α] (a : α) : a^0 = 1 := by grind
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example [CommRing α] (a : α) : a^1 = a := by grind
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example [CommRing α] (a : α) : a^2 = a*a := by grind
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example [Field α] (a : α) : b ≠ 0 → a ≠ 0 → a * (b / a) / b = 1 := by grind
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