eq.refl
@[foo, refl]
constructor eq.refl : ∀ {α : Sort u} (a : α), a = a
[eq.refl]
---
eq.refl
@[foo, foo.baz, refl]
constructor eq.refl : ∀ {α : Sort u} (a : α), a = a
[eq.refl]
user_attribute.lean:22:0: error: an attribute named [reducible] has already been registered
user_attribute.lean:27:0: error: invalid [user_attribute], must be applied to definition of type user_attribute
user_attribute.lean:33:2: error: invalid [user_attribute], must be applied to definition of type user_attribute