← Method Lines of the Perfect Cuboid: FORC, GERES, SIO-X4, X4-DMSD, IGPC and TIFV / FORC · The methodology

Method Lines of the Perfect Cuboid: FORC, GERES, SIO-X4, X4-DMSD, IGPC and TIFV FORC · The methodology unsigned in the source

FORC: Fraction-Ontological Ratio Calculus for X4 Virtual Curvature and Exact Click Search

A framework: rank exact-rational Stern–Brocot branches by the divided-difference 'virtual curvature' of four closure defects, while only exact X4-DMSD gates decide truth; it lists conjectures FORC-C1…C5 and says it proves neither existence nor nonexistence.

A methodology (a framework); it proves neither existence nor nonexistence. 'Curvature' is a heuristic for ranking, not a proof. FORC's P1–P8 are software and bounded certificates (see the result pages and the table below). No author line.

Connections · Connections

This is a full-text translation of the Chinese source, which remains authoritative for its research claims. Translation is not independent mathematical verification and does not upgrade the original evidence level.

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