Overview
The bosonic spectral stratification ($a_2 \to$ gravity, $a_4 \to$ Yang–Mills) supplies a gauge–gravity architecture for a supplied compact structure group. Fermions, chirality, hypercharge, and the three-generation structure are not covered by that bosonic synthesis. The fermionic matter sub-programme answers: do they also arise from the projective framework, and which bridges must be supplied?
The answer given in FM-Note 3.3 is layered and conditional, and each layer names what it needs. On a supplied Heisenberg carrier, given a real metaplectic model and a supplied doublet, the algebra $\mathrm{mp}(2,\mathbb{R})_\mathbb{C} \simeq \mathfrak{sl}_2(\mathbb{C})$ is proved, with the symmetric square of the doublet its adjoint and the exterior square its determinant line; it uses no metric. The admissibility axioms do not select that carrier, and every result inherits it. Two physical readings of this algebra are distinct hypotheses, supplied by no source and excluded by none: [H-Spin], a Lorentzian spin solder identifying the $\mathrm{SL}(2,\mathbb{C})$ of the doublet with the spin group of a four-dimensional co-metric, and [H-Weak], a distinct rank-two weak factor $E_{\mathrm{weak}}$ with structure group $\mathrm{U}(2)$, which is not constructed. Lorentz chirality and the weak chiral selection ($V-A$) are different statements, and the second is not derived from the first. Hypercharge rigidity carries a supplied three-dimensional colour module, and the generation factor a supplied rank-three carrier. The independent fermionic weak doublet is not produced by the tensor functors of the spinor bundle, and its two deposited candidates are closed by the exact obstructions of the NSR no-go note; its realisation is an explicitly architectural open frontier. The Schur form of the projective residue concerns a compression remainder, which is the projective endomorphism only under a symbol identity that no source states; a non-zero generation split, its Schur transport and its Born–Infeld genus are hypotheses, and no mechanism for such a split is derived.
The dictionary $F_n \overset{\mathrm{model}}{\simeq} \mathcal{H}_c$ is supplied. The Heisenberg carrier $\mathcal{H}_c$, its associated Weil block $V_c \simeq \mathbb{C}^q$, and the supplied spinor doublet $V_\rho \simeq \mathbb{C}^2$ are distinct; no map selecting the doublet is supplied. Connection-dependent admissible readings retain Q6a’s two unproved continuum hypotheses: a smooth effective fibre bundle and a differentiable spatial continuum, the latter open in Q5a.
Structural chain
$$ F_n \overset{\mathrm{model}}{\simeq} \mathcal{H}_c \;\overset{\text{model}}{\rightsquigarrow}\; \mathrm{Mp}(2,\mathbb{R}) \;\Rightarrow\; \mathrm{mp}(2,\mathbb{R})_\mathbb{C} \simeq \mathfrak{sl}_2(\mathbb{C}) \;\overset{[\text{H-Spin}]}{\rightsquigarrow}\; \mathrm{Spin}(3,1) \simeq \mathrm{SL}(2,\mathbb{C}) \;\Rightarrow\; \mathcal{S}_\Pi. $$
The carrier dictionary and the real metaplectic model are supplied, and the arrow marked [H-Spin] is not an implication. Then:
- $\mathrm{Sym}^2(S_L) \simeq \mathrm{ad}(P_\Pi)$ and $\wedge^2(S_L)$ trivial — the Lorentz sector, under [H-Spin].
- $\mathrm{Sym}^2(E_{\mathrm{weak}}) \supset \mathrm{ad}_\mathbb{C}(\mathfrak{su}(2)_L)$ — the $\mathrm{SU}(2)_L$ sector, under [H-Weak].
- $L_Y := \wedge^2(E_{\mathrm{weak}})$ — the $\mathrm{U}(1)_Y$ sector, under [H-Weak].
- $E_\Pi$ left-admissible — Lorentz chirality, under [H-Spin] and the Born–Infeld datum of O30; left-admissibility is the definition of the orientation-compatible branch, an input.
- The $V-A$ chiral structure — the representation content of [H-Weak], not derived from left-admissibility.
- supplied rank-three rule $\sigma_c(n_3) = 3 \to C^3_{\mathrm{gen}}$ — three generations as a gauge-singlet factor, conditional on that rule.
Core results (Q14 3.3, as organised in FM-Note 3.3)
- Theorem A (algebra proved on supplied model data; two conditional readings). On the supplied carrier, given a real metaplectic model and a supplied doublet $V$, $\mathrm{Sym}^2(V) \simeq \mathfrak{sl}_2(\mathbb{C})$ and $\wedge^2(V)$ is the determinant line: this is algebraic, proved without either hypothesis, and independent of any metric. Under [H-Spin], $\mathcal{S}_\Pi = S_L \oplus S_R$ is a spinor bundle, $\mathrm{Sym}^2(S_L)$ is its Lorentz sector and $\wedge^2(S_L)$ is trivial. Under [H-Weak], the same identities applied to $E_{\mathrm{weak}}$ give the weak adjoint, whose compact real form is $\mathfrak{su}(2)_L$, and $L_Y = \wedge^2(E_{\mathrm{weak}})$ carrying $\mathrm{U}(1)_Y$ only because the structure group is $\mathrm{U}(2)$. $E_{\mathrm{weak}}$ is not constructed.
- Theorem B (chirality and hypercharge, conditional; the parts carry different hypotheses). Under [H-Spin], the projected Dirac operator satisfies a Lichnerowicz-type identity. Under [H-Spin] and the Born–Infeld datum, the spinorial lift of the parity is, up to a phase, the unique covariant antilinear lift and reverses chirality; on the orientation-compatible branch, an input, $E_\Pi$ is left-admissible ($P_R E_\Pi P_R = 0$). This is Lorentz chirality. The $V-A$ structure is a different statement, the representation content of [H-Weak], which Q14 does not derive from left-admissibility. Under both hypotheses, $\mathrm{U}(1)_Y$ invariance imposes the anomaly-cancellation trace condition $\mathrm{Tr}_{\mathcal{S}_\Pi}(\gamma_5 Y A_\Pi(x)) = 0$, in its gauge-curvature part only. Hypercharge stands on two further steps: the rigidity of the weights carries a supplied three-dimensional colour module, and selecting the Standard Model pattern carries in addition the minimal integral normalisation of $L_Y$, holds only up to an overall sign, rescaling and the exchange of $u_R$ and $d_R$, and rests on a connection Q14 leaves open.
- Theorem C (three generations, conditional). The selection rule $\sigma_c(n_3) = 3$, a supplied rule, admits a spinorial multiplicity reading giving a gauge-singlet generation space $C^3_{\mathrm{gen}} \subset \ker(\mathrm{ad}_{\mathrm{SU}(2)} \oplus Y)$, on a supplied rank-three carrier and, through the bundle it multiplies, under [H-Spin] and [H-Weak]. The generation space is identified with neither the weak adjoint nor the Lorentz sector, and not with the spatial triplet: $\dim\mathbb{R}^3_{\mathrm{space}} = \dim C^3_{\mathrm{gen}}$ does not identify the two spaces.
- Colour sector (open input). A colour-coupled quark sector would tensor the admissible spinor bundle with a separately supplied colour module $V_{\mathrm{color}}$. O31 version 2.0 withdraws the claimed pointwise co-admissibility and group identification, so this module is not constructed by the present chain.
- Dynamic generation lifting (Q14 §6; model operators). The static $J_\Pi$-protected degeneracy of $C^3_{\mathrm{gen}}$ is statically obstructed; the admissible lifts removing the degeneracy form a two-dimensional $J_\Pi$-odd sector (real-split direction $J_3$; mixing direction a doublet rotation). The operators of Q14 §6 are model operators on a supplied doublet distinct from the soldered one; their reading as restrictions of $E_\Pi^2$ is the named hypothesis [H-Res], which is not supplied, and the level-to-generation map is not established. Within the metaplectic step model, the external block $R_{\mathrm{mix}}$ is not reached by the image of $\mathfrak{sl}_2(\mathbb{C})$ (Remark 6.4, a statement on $R_{\mathrm{mix}}$ only).
- Mass-sector frontier (PYL, PYO; no mass value). The line note types the Yukawa line as the conditional weak determinant line $L_Y = \wedge^2(E_{\mathrm{weak}})$ under [H-Weak] and orders the levels of the model operator $\mathrm{diag}(1, \tfrac12+u, \tfrac12-u)$ under [H-Res]. The operator note shows that $H_\Pi = Y^\dagger Y$ fixes the squared levels, not the polar factor of the morphism, and separates the polar generator of a morphism family from the projection $A_\Pi^{\mathrm{odd}}$ of the $\mathfrak{sl}_2$ lift, which vanishes, by representation theory, for the projection as defined, and does not determine the polar factor. The physical polar class is open, and the choice of the $J_\Pi$-odd part is a modelling choice that no source justifies.
Constituent papers
- Q14 — Toward fermionic matter from projective Dirac admissibility: chirality and electroweak structure rest on a Lorentzian spin solder and a distinct weak factor. Principal paper of the sub-programme (version 3.3): the metaplectic spinor algebra on supplied model data, the two hypotheses [H-Spin] and [H-Weak] on which the Lorentz and electroweak readings rest, and a model of the inter-generation splitting (Q14 §6).
- PRS — The projective residue as a Schur complement (version 3.0). Operator-side companion note refining Q14 §6. For a locking operator the Schur form $E_\Pi[P] = -N_P^\dagger N_P \preceq 0$ is unconditional; for the reference operator it is the compression remainder of the projected Dirac square, which is the projective endomorphism of Q14 only under the symbol identity $\Pi_S D^2 \Pi_S^{*} = \mathrm{Lich}$, which no source states. Under the generation-reading hypothesis [H-Gen] the reference operator gives $u = 0$ and a non-zero $u$ requires a locking operator that breaks $J_\Pi$-equivariance; the multiplicative reading [H-Mult] is a separate hypothesis. The finite sector is conditional. The Schur-null and Schur-transverse loci are defined and a dichotomy is proved under explicit hypotheses, which locus holds being open; the exact $\mathfrak{sl}_2$ opening is produced by $[E,F] = H$, and its transport to the locking operator is the hypothesis [H-Tr]. Neither the sign of the Born–Infeld genus nor the non-vanishing of $u$ follows, and no mechanism for a non-zero split is derived.
- AAR — Angular Amplitude Reduction: the Oriented Shear Product of the $\mathfrak{sl}(2)$ Step and the Central-Phase Observable of the Weil Cascade. Internal note fixing the observable for the absolute normalisation of the Q14 §6 angular split and reporting the Weil–BFS computations of it. The per-step $J_3$ component of the metaplectic cascade generator is the oriented shear product $ts$ produced by the $\mathfrak{sl}_2$ commutator $[E,F] = H$ (in the $\mathrm{SL}(2)$-on-$V$ model of Q14, no Heisenberg bracket); the proposed observable is the accumulated oriented central-phase increment of the Heisenberg lift, normalised by the projected capacity and compared to the dictionary $\varepsilon = 1/10$ without fitting. That this increment carries the $J_3$ signal is an input of the note, not a consequence of the reduction.
- Q11OF — The oriented frontier observable. Diagnostic note defining a frontier transfer observable on directed outgoing edges of the BFS cascade — the honest replacement for the identically-vanishing raw shell observable. Tests only whether the recursion produces a non-zero, bias-free oriented signal.
- A4-Note — The Born–Infeld saturation margin of the chiral modulus: antisymmetric structure and Lorentzian genus of the generation split (version 3.0). Companion to PRS examining the Lorentzian saturation functional. The symmetric square of the $J_\Pi$-odd modulus is $J_\Pi$-even and cannot carry the orientation sign, so the carrier is taken, by hypothesis, to be an odd antisymmetric chiral two-form $F_{\chi,\mu\nu}(s)$; $\mathcal{B}_{\mathrm{sat}}(s)$ is the Born–Infeld determinantal saturation margin of such a supplied two-form, and its second variation $\mu_\chi^2 = \tfrac{1}{2} P_{\chi,\mu\nu} P_\chi^{\mu\nu}$ is the Lorentzian genus of the chiral polarisation. The genus is not determined: the central commutator supplies no electric assignment, the central direction not being temporal in the co-metrics of the corpus. The quartic coefficient of the radicand depends on the parametrisation and selects no lock; for an exactly collinear purely electric ray the bound is reached at $t_* = \beta/|\mathbf{E}_{F_0}|$, and the first contact is chart independent when it exists. The Front D factorisation of the contact split is formal and conditional, and the magnitude $|u|$ is not predicted.
- EBJ — The constrained jet of the Lorentzian eliminated block and the chiral defect-rate identity. Companion taking up PRS's first open deliverable, the explicit $1 - P(s)$. For every smooth family the projector jet $1 - P(s) = Q_0 + sQ_1 + s^2Q_2 + O(s^3)$ is constrained ($Q_1 = [A, Q_0]$ a purely off-diagonal Grassmann tangent, $Q_2$ diagonal blocks pinned to $Q_1^2$ with opposite signs), with alternating parity under $J_\Pi$-equivariance. With a moving spinorial embedding, antiunitary parity makes every odd-order generation-mixing coefficient vanish, and an explicit covariant moving-Schur family realises $E_0^2 = \mathrm{diag}(1, \tfrac12, \tfrac12)$ with a non-zero split rate $u'(0) = 11 \cdot 2^{1/4}/9$. This finite witness has $J^2 = +1$ and lies outside [H-Gen](i) of PRS: it illustrates a moving-embedding family without being an instance of [H-Gen]. The identity $[\Pi_{J_\Pi\text{-odd}}\dot Q(0)]_{LL} = \tfrac12\partial_s\Delta_\chi(P)|_0$ fixes one block of the odd tangent, not a unique generator; the selection of the family and the normalisation of $|u|$ remain open.
- CHO — Chiral orientation of the directed Heisenberg frontier. Companion note resolving the chiral weight $\sigma_L$ deferred by Q11OF. Under [H-WS] (the residual reflection $R_b$ acts on the chiral carrier as the scalar $-1$; supplied by no source), a parity argument closes the false route $\sigma_L = f(T(e))$ — edge inversion and the residual reflection $\varphi$ both send $T \mapsto -T$, so every function of $T$ has equal arrow- and $\varphi$-parity, whereas the admissible weight is arrow-even and $\varphi$-odd. The resolution: $\sigma_L$ is the Weyl representation type $\mathbf{2}$ versus $\bar{\mathbf{2}}$ (group inversion preserves it, complex conjugation exchanges it). In the inherited Heisenberg central-phase lift the edge phase is the linear cyclotomic character $\zeta_q^{\Delta A_c}$ (no Gauss, Maslov or $\sqrt{5}$ component), so the natural branch gives $\rho_\chi = 1$ and $\mathcal{N}_A = \theta_{\max} \neq 0$ (by this definition) — $q$-stable to $0.4\,\%$ on the verified range, not $q$-invariant, in that lift and under [H-WS], not unconditionally. The residual open point is an additional spin-Galois phase outside the central character (a $\sqrt{5}$ or ADE-spin factor orthogonal to $\zeta_q$), an open point examined, under stated inputs, by the AOG-Note below.
- AOG — Spin-stratum type-rigidity: an obstruction to the Galois action on the binary icosahedral stratum, with conditional consequences for the chiral lift. Companion note isolating the exact logical status of the split value $\varepsilon = 1/10$: a theorem modulo the ADE case-selection gate (the generation-deficit normal form forces $\varepsilon = 1/10$ and $\kappa = 5/12$ once a case with external ratio $3{:}2$ is selected), whose first-principles status the note does not settle. The proved result is an obstruction concerning the Galois automorphism $\sigma : \sqrt{5} \mapsto -\sqrt{5}$: a character-table audit of $2I \cong \mathrm{SL}(2,5)$ shows that inner conjugations, $-I$ and $J_\Pi$ act trivially on $\mathrm{Irr}(2I)$, whereas $\sigma$ induces $(2\,2')(3\,3')$. Modulo [H-WS] for $R_b$, the A4 hypotheses for the locking, modelling assertions for the tensor functors and the Schur projection, and the modelling premise [M] that the generator list is complete (which implies carrier-preservation), the base-fibre Born–Infeld parity (a candidate hypothesis of the foundations, taken as a premise) fixing $\sqrt{5}$, no listed operation realises $\sigma$. No link between the gate and $\sigma$ is established (the outer automorphism fixes the order-four class and preserves each order-five locus), so the gate stays open. The Lorentzian chiral lift is an input that the note does not construct, the spin-solder hypothesis [H-Spin] of Q14; under [H-Spin], [H-WS], [M], the boost premise [B] and the inherited central-phase convention of CHO (with $\rho_\chi = 1$ by definition of $\sigma_L$) it induces no action on $\sqrt{5}$, so the residual caveat of CHO does not arise within the present spin stratum.
- PYL — Toward projected Yukawa couplings: a conditional weak determinant line and generation-level ordering (version 3.0.1). Companion note opening the mass-sector frontier; it derives no mass, Yukawa coupling or mixing. Algebra proved on supplied model data: on a rank-two bundle, $\wedge^2$ is the unique one-dimensional functor among $\mathrm{Sym}^k$ and $\wedge^k$, and it is trivial when the structure group lies in $\mathrm{SL}(2,\mathbb{C})$, so $\wedge^2(S_L)$ carries no abelian weight of the spin group under [H-Spin]. Under [H-Weak], the line $L_Y := \wedge^2(E_{\mathrm{weak}})$ with structure group $\mathrm{U}(2)$ carries the abelian weight: a conditional weak determinant line, not a line of the spinor bundle. On the generation triplet, the model operator $\mathrm{diag}(1, \tfrac12+u, \tfrac12-u)$ has exit deficits that order three levels for $0 < u < \tfrac12$ with a scale-independent ratio; reading it as $E_\Pi^2|_{C^3_{\mathrm{gen}}}$ is the named hypothesis [H-Res], not supplied, and the level-to-generation map is not established. The Yukawa operator needs a weak linking carrier supplied by no source; its norm, the sign of $u$ and the mixing remain open, so no mass value is claimed.
- PYO — Projected Yukawa operator and chiral polar factor (version 2.1). Second mass-sector step, with a partial no-go, stated on the generation block of the Yukawa morphism under the named premises [H-Res], [H-Sq], [H-Fac] and [H-Grad], none supplied. $H_\Pi = Y^\dagger Y$ fixes the squared levels $\lambda_Y^2\{1, \tfrac12+u, \tfrac12-u\}$ and not the polar factor $U_\Pi$, which carries the chiral orientation and the mixing; its rephasing class has three angles and one Jarlskog phase. The projection $A_\Pi^{\mathrm{odd}}$ of the $\mathfrak{sl}_2$ lift vanishes, by representation theory, for the projection as defined, and does not determine the polar factor: the polar generator of a morphism family solves a Sylvester equation and, at the identity, is the generally non-zero $J_\Pi$-even anti-hermitian part of the lift; an exact counterexample (the polar factor of $\mathrm{Sym}^2 g$, external entry $1/17$ at $(t, s) = (2, 1)$, not a Yukawa morphism) shows that a vanishing tangent does not exclude a finite external entry. The corpus supplies no family of Yukawa morphisms, so the physical polar class is open, and the choice of the $J_\Pi$-odd part is a modelling choice that no source justifies. The depth hierarchy of the generations is not derived. On the orientation-compatible branch of Q14, an input, in the framework of PRS (under its generation-reading hypothesis) a non-zero diagonal split requires a locking operator that breaks $J_\Pi$-equivariance, and no mechanism for it is derived.
- KUD — Charged-lepton Koide relation as a unit-dispersion constraint. A source note fixing the mass-sector target as a single scale-free invariant: $Q_\ell = (1 + \mathrm{CV}(r_\ell)^2)/3$, so Koide $\iff \mathrm{CV}(\sqrt m) = 1$ (standard deviation equal to mean). It separates the dispersion constraint from the concrete hierarchy (the phase placing one generation near a node of the square-root profile), and shows that the ladder $(1, \tfrac12 + u, \tfrac12 - u)$, taken by hypothesis as a normal form of the projected levels, under-disperses ($\mathrm{CV} \le 1/\sqrt2$), so it cannot reach $Q = 2/3$. A maximum-entropy reading is recorded as an open test, and a scoped no-go now excludes the linear self-adjoint determinant realisation of the singlet–doublet route (the equipartition mechanism otherwise remaining open); a target invariant, not a mass formula.
- TPC — Ternary phase carrier: colour, generations, and Koide as one carrier. A speculative bridge relating three facts through one complex three-phase carrier $z_g = S + A\,e^{i(\delta + 2\pi g/3)}$: its pure-phase part sums to zero ($1+\omega+\omega^2=0$, a colour-neutral class), its real part is the square-root mass profile of KUD. The singlet amplitude $S$ is the master dial — $S=0$ colour (confined), $S\neq0$ masses, $A=\sqrt2\,S$ equipartition (Koide, $\mathrm{CV}=1$), $\delta$ near a node the hierarchy — with a candidate capacity-balance filter saturated at $\mathrm{CV}=1$ (the selection of the saturated edge by projection locking being a further hypothesis that the cited sources do not supply). Explicitly not a derivation: it reorganises the open questions and states the construction charge sheet.
- NPI — Neutrino mixing and projective particle identity. A structural companion note on the ontology of fermionic identity: the misalignment between the weak flavour basis and the mass propagation basis is the generic situation (neutral meson systems exhibit the same structure; the neutrino is the elementary case), while alignment requires an identity-stabilising projection channel. The large PMNS mixing is then the unfixed default, consistent with the anarchy hypothesis, and the near-diagonality of CKM becomes the explanandum, conditional on a common projective frame. No mixing angles or masses are derived.
- SRN — Spin as a transformation class of rotating wave modes. Companion conceptual audit of the rotating-wave reading of spin: the relative phase is a measurable coordinate within a sector, the weight $m$ an axial winding degree, $j$ the $SU(2)$ representation label, and univalence $(-1)^{2j}$ a rule on the observable algebra. For Cosmochrony it records the exact central grading on $V_\rho^{\otimes n}$, the $e_0$ correction (spin-weight $m = 0$ within the $j = 1$ module), the Lorentz/weak factor separation, and types the open front: constructing the full $\operatorname{Spin}(3)$ action (representational problem) versus its dynamical realisation by the cascade, with axis and angle relation both to be derived (dynamical problem).
- NSR — Operator doublets, erased history fibres, and the no-sequential-re-entry theorem. No-go note closing the two deposited candidates for the independent fermionic weak multiplicity $M_L \simeq \mathbb{C}^2$: the commutant of the finite Weil module is spanned by the two parity projectors, so the canonical Hecke $M_2(\mathbb{C})$ doublets of $\mathrm{End}(V_c)$ admit no fermionic lift; the erased history fibres are structurally abelian ($C_4$ frame stabiliser, canonical $(\mathbb{Z}_2)^r$ torsor per $b$-shadow); the two odd Hermitian axes $i(A_X \pm A_Y)$ are exchanged by a semilinear automorphism of the cocycle-enriched datum; and the no-sequential-re-entry theorem ($\pi v = 0 \Rightarrow Q\pi v = 0$, for the record quotient and for the conditional expectations of every non-degenerate measure) excludes every projection tower. Corollary: the history-fibre route requires a parallel oriented substrate channel — an extension architecture, not a derivation.
Position within Cosmochrony
The fermionic matter sub-programme sits at the apex of Branch III. It is the first paper of the Q-series that depends simultaneously on all upstream layers of the programme:
- the Weil fibre structure on a supplied Heisenberg carrier (Note 1 and Note 5);
- a four-dimensional Lorentzian co-metric on the effective base, supplied and entering the fermionic sector only through [H-Spin] (Note 2);
- the gauge bundle for a supplied compact structure group (Note 3);
- the gauge–gravity synthesis (Q13, to be summarised in Presentation Note 8).
Open deliverables
- Explicit $E_\Pi$, splitting value and the Yukawa sector. The mass spectrum and the mixing require the explicit spectral construction of $E_\Pi$. The Schur form of the compression remainder, $-N^\dagger N \preceq 0$, is that of $E_\Pi$ only under the identity $\Pi_S D^2 \Pi_S^{*} = \mathrm{Lich}$; the open part is its explicit Lorentzian block $1 - P(s)$ along the $J_\Pi$-odd modulus. The Schur-null and Schur-transverse loci of the transported $J_\Pi$-odd tilt of the locking operator are defined in PRS, where a dichotomy is proved under explicit hypotheses; which locus holds is open. The exact $\mathfrak{sl}_2$ opening of the oriented metaplectic step is produced by $[E,F] = H$ (Q14, Proposition 6.5), but its transport to the locking operator is the hypothesis [H-Tr] of PRS, supplied by no source. The A4 companion does not determine the genus: the central commutator supplies no electric assignment, the central direction not being temporal in the co-metrics of the corpus, and no map from the generation operator to a two-form is available. Neither amplitude nor selection is settled there: the quartic coefficient of the radicand depends on the parametrisation of the modulus and selects no lock, and for an exactly collinear purely electric ray the bound is reached at $t_* = \beta/|\mathbf{E}_{F_0}|$; no choice between a boundary contact and an interior stationary point is established. What remains open is the existence of a non-zero split, its value $|u|$ and the Yukawa sector downstream of $u$. The value $|u|$ is not a parameter-free prediction: it is dictionary-bound through the chiral-frontier normalisation $\mathcal{N}_A$ (angular analogue of the radial scale $\kappa = 5/12$). The genuine first-principles front is therefore upstream and structural: the ADE case selection and level-to-generation map, the derivation of the projective-resolution growth and the cascade exponent $\beta$, and the transfer constant $N_{\mathrm{casc}}$ that fixes $\mathcal{N}_A$. Downstream of these: the integral normalisation of $\mathcal{L}_Y$, the mass spectrum, and the generation mixing, whose physical polar class is open. The Yukawa line and the generation ordering are recorded conditionally (PYL): $L_Y = \wedge^2(E_{\mathrm{weak}})$ under [H-Weak] and the ordering of the levels of $\mathrm{diag}(1, \tfrac12+u, \tfrac12-u)$ under [H-Res]; the Yukawa operator needs a weak linking carrier supplied by no source, and its norm, the sign of $u$, the polar class (PYO) and the mixing remain open.
- Spin solder and weak factor. Construct the principal $\mathrm{Spin}(3,1)$-bundle of [H-Spin] from the metaplectic action, and the distinct rank-two weak factor $E_{\mathrm{weak}}$ of [H-Weak]; neither is supplied, and neither is excluded.
- Colour carrier and group. Construct a colour module and prove its admissibility and compact symmetry group independently of the withdrawn O31 claims.
- Full matter content in Lorentzian signature. $S^{\mathrm{matter}}_\Pi = (\mathcal{S}_\Pi \oplus (\mathcal{S}_\Pi \otimes V_{\mathrm{color}})) \otimes C^3_{\mathrm{gen}}$ with explicit gauge couplings and three-generation Yukawa structure.
References
Beau, J. The Fermionic Matter Sub-Programme (Presentation Note 6). Version 3.3, 2026. https://doi.org/10.5281/zenodo.20562665