English
The zero element acts as an additive identity and addition is commutative on LinearPMap in the sense of AddZeroClass.
Русский
Нулевой элемент служит единицей сложения и сложение в LinearPMap коммутативно в рамках AddZeroClass.
LaTeX
$$zero_add and add_zero axioms for LinearPMap$$
Lean4
instance instAddZeroClass : AddZeroClass (E →ₗ.[R] F)
where
zero_add := fun f => by
ext x y hxy
· simp [add_domain]
· simp [add_apply]
add_zero := fun f => by
ext x y hxy
· simp [add_domain]
· simp [add_apply]