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:24:0: error: an attribute named [reducible] has already been registered state: ⊢ true user_attribute.lean:29:0: error: invalid attribute.register argument, must be name of a definition of type user_attribute state: ⊢ true user_attribute.lean:35:2: error: invalid attribute.register argument, must be name of a definition of type user_attribute state: ⊢ true