canonical_minimal_hierarchy_canonicality
plain-language theorem explainer
Any minimal discrete hierarchy (a geometric scale ladder closed under the first non-trivial composition step) is canonical: its common ratio equals φ and its scale sequence agrees pointwise with the canonical minimal hierarchy. The T5-to-T6 self-similarity bridge cites this certificate. The proof is a two-field structure packing of the ratio and scale lemmas.
Claim. Let $H$ be a minimal hierarchy: a geometric scale ladder closed under the first non-trivial composition step. Then the common ratio of $H$ equals $\varphi$, and for every index $k$ the $k$-th scale of $H$ equals the $k$-th scale of the canonical minimal hierarchy.
background
The Unified Forcing Chain module shows that T0 through T8 are forced from the cost foundation (Recognition Composition Law with normalization and calibration). T5 pins the unique cost $J(x)=(x+x^{-1})/2-1$; T6 forces $\varphi$ as the self-similar fixed point of the discrete ledger.
A minimal hierarchy is a geometric scale sequence closed under the first non-trivial composition step (the Fibonacci-type closure). Canonicality for such an $H$ is the pair of statements that its ratio equals $\varphi$ and that its scale function agrees with a fixed canonical minimal hierarchy at every rung.
Upstream, the shifted cost $H(x)=J(x)+1$ converts RCL into d'Alembert form, and geometric scales of the form $\varphi^k$ appear as the natural discrete ladder once self-similarity is in force.
proof idea
Term-mode construction of the MinimalHierarchyCanonicality certificate. The ratio_eq field is filled by minimalHierarchy_ratio_eq_phi H; the scale_eq field by minimalHierarchy_scale_eq_canonical H. No further tactics: the theorem is the packaging of those two prior equalities into the Prop structure.
why it matters
This certificate is consumed by t5_to_t6_bridge_holds, which asserts that the T5-to-T6 self-similarity bridge is theorem-backed: uniqueness of $J$ plus internal hierarchy dynamics and realized closed-scale normal form force $\varphi$. In the forcing chain, T6 is exactly "$\varphi$ forced as the self-similar fixed point"; showing every minimal hierarchy is the canonical $\varphi$-ladder removes free scale choice between unique cost and the discrete self-similar rung structure. It sits inside the Complete Inevitability Chain claim that every level from absolute floor through D=3 is forced, not merely compatible.
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