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E0 CITIZEN · INVARIANT GRAMMAR GRAND TERMINAL
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$\mathcal Q[\mathsf{Radix\ Invariance}\mid\mathcal K_{47/125}:=(\Sigma,C,K,E_{47},P_{47},\Omega_c);\mathbf{Exact};\operatorname{val}b(\operatorname{enc}b(\mathcal K{47/125}))=\mathcal K{47/125};E0;\forall b\ge2]$
Route: Radix Interchange → Central Citadel
Evidence: E0 exact
Boundary: Numeral representation varies; mathematical object does not.