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(*         *      The Rocq Prover / The Rocq Development Team           *)
(*  v      *         Copyright INRIA, CNRS and contributors             *)
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(** * HexadecimalZ  Proofs that conversions between hexadecimal numbers and [Z] are bijections. *)

Lemma to_int_surj d : exists n, Z.to_hex_int n = norm d.