9 lines
298 B
Text
9 lines
298 B
Text
/-
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Copyright (c) 2022 Henrik Böving. All rights reserved.
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Released under Apache 2.0 license as described in the file LICENSE.
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Authors: Henrik Böving
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-/
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prelude
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import Init.Data.Nat.Log2
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def Fin.log2 (n : Fin m) : Fin m := ⟨Nat.log2 n.val, Nat.lt_of_le_of_lt (Nat.log2_le_self n.val) n.isLt⟩
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