Content stub — prose, diagrams, and Lean 4 exercises to be written.
This week covers: φ = 1 + 1/φ as fixed-point equation. The same structure as G* = G(G*). Philosophical implications for dm³.
Primary chapter references from book/: ch9-phi.html
-- dm³ 101 · Week 11 · Lean 4 Lab -- Operator: φ (≈ 1.618 Fibonacci) -- TODO: fill in theorems and exercises -- stub example : True := trivial