lean4-htt/tests/pkg/builtin_attr/UserAttr/BlaAttr.lean
2024-04-29 05:46:11 +02:00

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Text

import Lean
open Lean
-- initialize discard <| registerTagAttribute `foo ""
initialize registerBuiltinAttribute {
name := `bar,
descr := "",
add := fun _ _ _ => pure ()
}
def myFun (x : Nat) :=
x + 1
example : myFun x = x + 1 :=
rfl