English
Under suitable nondegeneracy hypotheses, for any c ≠ 0 there exists x ≠ 1 with ‖x‖ₑ < c.
Русский
При подходящих гипотезах существует x ≠ 1 such that ‖x‖ₑ < c для любого c ≠ 0.
LaTeX
$$$$ \\exists x \\neq 1, \\; \\|x\\|_{e} < c \\quad\\text{для данного } c>0 $$$$
Lean4
@[to_additive (attr := simp) enorm_zero]
theorem enorm_one' {E : Type*} [TopologicalSpace E] [ESeminormedMonoid E] : ‖(1 : E)‖ₑ = 0 := by
rw [ESeminormedMonoid.enorm_zero]