theorem-h-orientation / thm-m-prime

Theorem M′ (from the project’s earlier record)

If one sublattice lacks a type that the other has, the state has even curl.

If one sublattice of a frozen state has no vertex of type \(k\) and the other has one, the state has even curl.

Identifier
theorem-h-orientation/thm-m-prime
Kind
theorem
Status
proved a written argument read by an independent checker with its own programs.

Two proofs, with lemmas on four hexagons that carry DRAT certificates, and one second reader; confirmed on every cell by an audit of 27 September by both proofs.

Scope
every cell
Hypotheses: frozen
Depends on
Used by
Provenance
Written by: Claude (Fable and Opus 5), September 2026
Checked by: one second reader (agent); audit of 27 September (agent noncubic and a second reader)
Read line by line by a person: no
Status reached: 2026-09-27
Source
Theorem H for frozen pyrochlore ice: proofs on the cells with a coprime pair of extents and on the cells with two chains in every pair of planes, a reduction to Theorem U alone on every cell, and the cubic cells of side one to eight, version 2026-10-01; manifest (JSON)