Encyclopedia Mathematics Mathematics Graph Theory From Rs Q3 Edges Factored

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Mathematics Graph Theory From Rs Q3 Edges Factored

A three-dimensional cube has twelve edges, and a machine-checked proof now records that fact as part of a larger mathematical structure.

The cube's twelve edges

A cube is the most familiar three-dimensional object in geometry. It has eight corners, six faces, and twelve edges. The number twelve is not arbitrary: each of the cube's three axes contributes four parallel edges, so the total is three times four. This simple counting rule works for any dimension: a four-dimensional hypercube has thirty-two edges, and a two-dimensional square has four.

The Recognition Science framework studies a particular cube called the recognition lattice Q₃, whose eight vertices are the binary strings 000, 001, 010, 011, 100, 101, 110, and 111. Two vertices are connected by an edge when their strings differ in exactly one position. This graph is bipartite: its vertices split into two groups of four, those with an even number of 1s and those with an odd number. Because it is bipartite, its chromatic number, the fewest colors needed to color adjacent vertices differently, is exactly 2. The eight vertices also form a Hamiltonian cycle, a single loop that visits every vertex exactly once, matching the eight-tick cycle used elsewhere in the framework.

Within this framework, the declaration q3Edges_factored is a machine-checked theorem in the framework's library of formal theorems. It states that the number of edges in Q₃ equals 3 × 4, which evaluates to 12. The proof is by direct computation, and the library records that the theorem uses no axioms beyond the standard logical ones. The declaration is part of a certificate structure that bundles together the facts that Q₃ has 8 vertices, 12 edges, chromatic number 2, and the factored edge count 3 × 4.

In Recognition Science, this cube is not an isolated curiosity. The framework derives the number 8 as 2³ from its recognition cycle, and the edge count 12 follows from the same structure. The factored form 3 × 4 emphasizes that the twelve edges arise from three independent axes, each carrying four edges. This connects the graph-theoretic fact to the framework's broader claim that three spatial dimensions are forced by the recognition process, though that physical claim rests on additional linking structure that remains an open target.

What q3Edges_factored does not claim is just as important. It does not prove that physical space has three dimensions; that would require the separate linking bridge. It does not establish that the cube is the only graph with twelve edges, nor does it say anything about graphs in general. The theorem is a precise, narrow fact about one specific graph: the three-dimensional binary cube has twelve edges, counted as three axes times four edges each.

THEOREM q3Edges_factored · IndisputableMonolith/Mathematics/GraphTheoryFromRS.lean
/-- 12 = 3 × 4 = D × 2^(D-1). -/
theorem q3Edges_factored : q3Edges = 3 * 4 := by decide
THEOREM graphTheoryCert · IndisputableMonolith/Mathematics/GraphTheoryFromRS.lean
def graphTheoryCert : GraphTheoryCert where
  vertices_8 := q3Vertices_eq
  edges_12 := q3Edges_eq
  chromatic_2 := q3Chromatic_eq
  edges_factored := q3Edges_factored
THEOREM q3Bipartite · IndisputableMonolith/Mathematics/GraphTheoryFromRS.lean
theorem q3Bipartite : q3ChromaticNumber = 2 := rfl

What this page does not claim

This theorem does not prove that physical space has three dimensions. It does not claim the cube is the only graph with twelve edges. It does not establish any property of graphs beyond the specific binary cube Q₃.

Verify this page

Every tagged claim above names its theorem. To check one yourself rather than trust this page, elaborate the source module with Lean 4 and audit its axiom basis:

$ lake env lean IndisputableMonolith/Mathematics/GraphTheoryFromRS.lean
expected axiom basis: [propext, Classical.choice, Quot.sound] (the Lean kernel's standard three; no RS-specific axioms)

A page whose claims cannot be reproduced this way does not ship. In production, every anchor links to the exact declaration in the public source release, and this block carries the build receipt for the page itself.

Derived articles

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