Escape Iteration
Abstract
Past the threshold, one step multiplies the excess above it by the conjugate modulus.
Naming the excess above the threshold turns the escape into a single multiplicative statement. The multiplier identity is the threshold identity rearranged, so no new arithmetic about the base is needed: the modulus carries the threshold to the threshold plus two.
Theorem 1.1 (The escape iterates).
Proof. Machine-checked in Lean as D5/S0/Tower/NonPisotFrontier/EscapeIteration.escape_iterates (✓ std3). ∎
Source. Repository-derived.
Commentary.
The image stays past the threshold, so the step applies again. With the witness already established four steps along the orbit, the conjugate coordinates cannot remain bounded.
References
- Truth anchor:
D5/S0/Tower/NonPisotFrontier/EscapeIteration.escape_iterates - Dependency: D5/S0/Tower/NonPisotFrontier/EscapeThreshold