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authorAnton Trunov2019-05-29 15:17:39 +0300
committerAnton Trunov2019-05-29 15:17:39 +0300
commit42db44ce8df9f24d90c321d57e81e2d5bf83bd48 (patch)
treec928479b8231901da1cfb4efece42ebe2d419da7 /mathcomp/solvable/abelian.v
parent1aa27b589c437b88cc6fb556edfceac42da449ea (diff)
Replace eqVneq with eqPsym
Also changed eqsVneq.
Diffstat (limited to 'mathcomp/solvable/abelian.v')
-rw-r--r--mathcomp/solvable/abelian.v6
1 files changed, 3 insertions, 3 deletions
diff --git a/mathcomp/solvable/abelian.v b/mathcomp/solvable/abelian.v
index a51cbf2..dd14013 100644
--- a/mathcomp/solvable/abelian.v
+++ b/mathcomp/solvable/abelian.v
@@ -836,9 +836,9 @@ Qed.
Lemma rank_gt0 G : ('r(G) > 0) = (G :!=: 1).
Proof.
-case: (eqsVneq G 1) => [-> |]; first by rewrite rank1 eqxx.
-case: (trivgVpdiv G) => [-> | [p p_pr]]; first by case/eqP.
-case/Cauchy=> // x Gx oxp ->; apply: leq_trans (p_rank_le_rank p G).
+case: (eqsVneq G 1) => [-> |]; first by rewrite rank1.
+case: (trivgVpdiv G) => [-> | [p p_pr]]; first by rewrite eqxx.
+case/Cauchy=> // x Gx oxp _; apply: leq_trans (p_rank_le_rank p G).
have EpGx: <[x]>%G \in 'E_p(G).
by rewrite inE cycle_subG Gx abelemE // cycle_abelian -oxp exponent_dvdn.
by apply: leq_trans (logn_le_p_rank EpGx); rewrite -orderE oxp logn_prime ?eqxx.