English
For all a,b in α, the emultiplicity of a with respect to −b equals the emultiplicity of a with respect to b when viewed in the same ring
Русский
Пусть a,b ∈ α. Эмптимульность a по отношению к −b равна эмптимульности a по отношению к b в этом же кольце.
LaTeX
$$$\\operatorname{emultiplicity}(a,-b) = \\operatorname{emultiplicity}(a,b)$$$
Lean4
@[simp]
theorem emultiplicity_neg (a b : α) : emultiplicity a (-b) = emultiplicity a b :=
by
rw [emultiplicity_eq_emultiplicity_iff]
simp