pith. machine review for the scientific record. sign in
def definition def or abbrev high

cubeFaces

show as:
view Lean formalization →

The definition assigns the constant 6 to cubeFaces as twice the spatial dimension. Researchers verifying the Recognition Science cardinality spectrum would cite it when confirming decompositions of spectrum members into primitives 2 and 3. It is a direct constant definition that supports equality theorems and the spectrum certificate without further computation.

claimLet cubeFaces denote the number of faces of the three-dimensional cube $Q_3$. Then cubeFaces equals 6.

background

The CrossDomain.CardinalitySpectrum module collects witnesses for the structured spectrum of cardinalities in Recognition Science, including members reachable from generators {2, 3}, configuration dimension 5, and gap45. Dspatial is defined as 3, matching the spatial dimension forced by the eight-tick octave. Upstream results supply parallel definitions: cubeFaces as six faces of $Q_3$ in ParadigmShiftLattice and as unit cube face count in FreudenthalTriangulationCert.

proof idea

This is a direct definition that sets cubeFaces to the constant 6. It functions as a one-line abbreviation relying on the prior definition of Dspatial as 3.

why it matters in Recognition Science

The definition feeds the CardinalitySpectrumCert structure via the field cubeFaces_as_D : cubeFaces = twoFace * Dspatial. It supports downstream theorems including six_is_cubeFaces, cubeFaces_eq, and twoSixteen_is_six_cubed, plus five_plus_one_equals_six in ParadigmShiftLattice. It instantiates the spatial dimension D = 3 from T8 and anchors the spectrum decomposition into RS primitives.

scope and limits

Lean usage

theorem six_is_cubeFaces : (6 : ℕ) = cubeFaces := rfl

formal statement (Lean)

  31def cubeFaces : ℕ := 6       -- 2 * Dspatial

proof body

Definition body.

  32

used by (11)

From the project-wide theorem graph. These declarations reference this one in their body.

depends on (3)

Lean names referenced from this declaration's body.