lean2/tests/lean/run/ind2.lean

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prelude
inductive nat : Type :=
| zero : nat
| succ : nat → nat
namespace nat end nat open nat
inductive vector (A : Type) : nat → Type :=
| vnil : vector A zero
| vcons : Π {n : nat}, A → vector A n → vector A (succ n)
namespace vector end vector open vector
check vector.{1}
check vnil.{1}
check vcons.{1}
check vector.rec.{1 1}