def
definition
def or abbrev
ode_regularity_differentiable_hypothesis_neg
show as:
view Lean formalization →
formal statement (Lean)
199def ode_regularity_differentiable_hypothesis_neg (H : ℝ → ℝ) : Prop :=
proof body
Definition body.
200 (∀ t, deriv (deriv H) t = -H t) → Continuous H → Differentiable ℝ H
201
202/-- cos satisfies the ODE regularity bootstrap. -/