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authorCyril Cohen2020-11-19 18:33:21 +0100
committerCyril Cohen2020-11-19 21:38:46 +0100
commite565f8d9bebd4fd681c34086d5448dbaebc11976 (patch)
tree3e74907bf8e310b6400b7c340357ad44fc44a83f /mathcomp/ssreflect/tuple.v
parent0dbefe01e54a467b7932a514355f0435b4cfb978 (diff)
Removing duplicate clears and turning the warning into an error
Diffstat (limited to 'mathcomp/ssreflect/tuple.v')
-rw-r--r--mathcomp/ssreflect/tuple.v2
1 files changed, 1 insertions, 1 deletions
diff --git a/mathcomp/ssreflect/tuple.v b/mathcomp/ssreflect/tuple.v
index db53235..f32793f 100644
--- a/mathcomp/ssreflect/tuple.v
+++ b/mathcomp/ssreflect/tuple.v
@@ -349,7 +349,7 @@ Proof.
case=> /= t t_n; rewrite -(count_map _ (pred1 t)) (pmap_filter (insubK _)).
rewrite count_filter -(@eq_count _ (pred1 t)) => [|s /=]; last first.
by rewrite isSome_insub; case: eqP=> // ->.
-elim: n t t_n => [|m IHm] [|x t] //= {IHm}/IHm; move: (iter m _ _) => em IHm.
+elim: n t t_n => [|m IHm] [|x t] //= {}/IHm; move: (iter m _ _) => em IHm.
transitivity (x \in T : nat); rewrite // -mem_enum codomE.
elim: (fintype.enum T) (enum_uniq T) => //= y e IHe /andP[/negPf ney].
rewrite count_cat count_map inE /preim /= [in LHS]/eq_op /= eq_sym => /IHe->.