2026-06-15 (bedrock: the [formula in source] residual reduced once more — v201)
Research changelog · TFPT — Introduction and reading guide
QGEO.SUBPRIN.01 ( v201, / ). The v199 bedrock residual — ``the bounded sub-principal symbol of the raw seam DtN has no off-character (mod 4) matrix elements'' — is reduced one genuine step further: block-diagonality is not an independent postulate. Writing the DtN as [formula in source] with [formula in source] the bounded sub-principal piece [formula in source] multiplication by a curvature [formula in source] (stan
Opening source excerpt. Formulas and the full argument remain in the original document.
Source location and explicit evidence links
documents/changelog/sections/020-source.tex · lines 157 to 174
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