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(* GNU General Public License for more details.                       *)
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(* 02110-1301 USA                                                     *)
Require Export Qquadratic.

Lemma fraction_encoding_reduces :
forall (a b m n : Z) (Hb : b <> 0%Z) (Hn : n <> 0%Z),
(a * n)%Z = (m * b)%Z -> fraction_encoding a b Hb = fraction_encoding m n Hn.