Enumeration Ten Valid B

Abstract

All forty-two period-ten certificates are valid coded orbits.

The enumerator was calibrated against both committed levels before use, and against their rotation classes as sets rather than their counts: it reproduces the fifteen period-eight classes and the twenty-six period-nine classes exactly.

Theorem 1.1 (Enumeration Ten Valid B).

$$\forall o\in TribonacciCodedOrbit,o\in tribonacciPeriodTenOrbitRepresentatives\Rightarrow \mathrm{tribonacciCodedOrbitValid}\left(o\right)$$

Proof. Machine-checked in Lean as D5/S0/Tower/TribonacciPeriodicTen/EnumerationTenValidB.tribonacci_period_ten_representatives_valid (✓ std3). ∎

Source. Repository-derived.

Commentary.

The tactic closure is the one the shorter levels use, reused verbatim rather than re-derived.

References

• Truth anchor: D5/S0/Tower/TribonacciPeriodicTen/EnumerationTenValidB.tribonacci_period_ten_representatives_valid
• Dependency: D5/S0/Tower/TribonacciPeriodicNine/EnumerationNineMaximinB
• Dependency: D5/S0/Tower/TribonacciPeriodicTen/EnumerationTenValidA