Source soundness with the actual finite register numbering #
Coordinate relabeling is performed on the intrinsic quotient predicate. Dual answers are only canonicalized afterwards in binary coordinates. Thus no equivariance of the chosen canonical complement is used.
Stated in a bipartite model (Phase 4 of planning/mipco-track.md): the strategy is a projective
strategy of any model M, every transport keeps it in M, and the Pauli basis test enters as its
soundness in M (QLD.SoundIn ω M); the value is that of the value model ω.
Relabel all answer coordinates, in the same model.
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Decode quotient duals in binary coordinates.
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Undo the explicit seed selector after decoding the quotient duals.
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The precise actual QLD strategy used by the numbered source-game theorem.
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A witness about the actual restricted strategy gives the source bound in the original finite coordinates, with no coordinate or quotient penalty, in every value model dominating the witness's ancilla model.
Uniform profile absorption only needs a witness for this restriction, rather than an extraction hypothesis quantified over arbitrary strategies.
The Pauli basis test, sound in the model of the strategy, supplies the extraction witness; no external extraction hypothesis remains. Only decoder-enforced Pauli support is used.
Uniform soundness for the actual canonical field and register parameters, on the source's original coordinate type. All QLD tails are absorbed.