diff options
Diffstat (limited to 'mathcomp/ssreflect/finset.v')
| -rw-r--r-- | mathcomp/ssreflect/finset.v | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mathcomp/ssreflect/finset.v b/mathcomp/ssreflect/finset.v index 9953c0d..e608d2b 100644 --- a/mathcomp/ssreflect/finset.v +++ b/mathcomp/ssreflect/finset.v @@ -900,7 +900,7 @@ Lemma subDset A B C : (A :\: B \subset C) = (A \subset B :|: C). Proof. apply/subsetP/subsetP=> sABC x; rewrite !inE. by case Bx: (x \in B) => // Ax; rewrite sABC ?inE ?Bx. -by case Bx: (x \in B) => //; move/sABC; rewrite inE Bx. +by case Bx: (x \in B) => // /sABC; rewrite inE Bx. Qed. Lemma subsetDP A B C : |