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-rw-r--r--mathcomp/odd_order/PFsection9.v2
1 files changed, 1 insertions, 1 deletions
diff --git a/mathcomp/odd_order/PFsection9.v b/mathcomp/odd_order/PFsection9.v
index 63e10bb..e7f82bc 100644
--- a/mathcomp/odd_order/PFsection9.v
+++ b/mathcomp/odd_order/PFsection9.v
@@ -1953,7 +1953,7 @@ have [gtS4alpha s4gt0]: (size S4)%:R > '[alpha] /\ (size S4 > 0)%N.
rewrite ltn_pmul2r ?expn_gt0 ?a_gt0 // -doubleS.
by rewrite -(prednK q_gt0) expnS mul2n leq_double ltn_expl.
rewrite mulnA leq_pmul2r ?expn_gt0 ?a_gt0 // -(subnKC q_gt2).
- rewrite mulnCA mulnA addSn -mul_Sm_binm bin1 -mulnA leq_pmul2l //.
+ rewrite mulnCA mulnA addSn -mul_bin_diag bin1 -mulnA leq_pmul2l //.
by rewrite mulnS -addSnnS leq_addr.
rewrite Dp -Da_p mul2n (addnC a.*2) expnDn -(subnKC q_gt2) !addSn add0n.
rewrite 3!big_ord_recl big_ord_recr /= !exp1n /= bin1 binn !mul1n /bump /=.