theorem
proved
term proof
trajectory_succ
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formal statement (Lean)
97theorem trajectory_succ (f : ℝ → ℝ) (r : ℝ) (n : ℕ) :
98 trajectory f r (n + 1) = f (trajectory f r n) := rfl
proof body
Term-mode proof.
99
100/-! ## §3. Equilibrium fixed point -/
101