diff options
Diffstat (limited to 'mathcomp/ssreflect/tuple.v')
| -rw-r--r-- | mathcomp/ssreflect/tuple.v | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/mathcomp/ssreflect/tuple.v b/mathcomp/ssreflect/tuple.v index 8f81155..c0ba403 100644 --- a/mathcomp/ssreflect/tuple.v +++ b/mathcomp/ssreflect/tuple.v @@ -411,10 +411,14 @@ Proof. by rewrite -tnth_nth tnth_mktuple. Qed. End MkTuple. +Lemma eq_mktuple T' (f1 f2 : 'I_n -> T') : + f1 =1 f2 -> mktuple f1 = mktuple f2. +Proof. by move=> eq_f; apply eq_from_tnth=> i; rewrite !tnth_map eq_f. Qed. + End UseFinTuple. Notation "[ 'tuple' F | i < n ]" := (mktuple (fun i : 'I_n => F)) (at level 0, i at level 0, format "[ '[hv' 'tuple' F '/' | i < n ] ']'") : form_scope. - +Arguments eq_mktuple {n T'} [f1] f2 eq_f12. |