Documentation

Q2Presentation.Induction.MinimalBlockPushoutRoute60Closers

Route60 minimal-block pushout/determinant closers #

Route58 normalized the actual central-extension square to the extraspecial square attached to phi_lambda, removing the square, diagonal, and polar residuals from the final Section 7 pushout cluster. The final route still sees four non-local packets:

This Route60 sidecar does not integrate a new final route. It exports a drop-in Route58-shaped provider whose closure replaces those four packet names by lower-level manuscript-shaped obligations from §7:

The assembly from those packets to Route58 data is theorem-level: annihilation is extraspecial_annihilates, and radical containment is extraspecial_radical_subset.

Route60 lower-level §7 packets #

Route60 lower-level packet for the actual scalar pushout pairing family.

Manuscript anchor: §7, K_lambda = K / ker lambda, where the commutator pairing of the central double cover gives the self-duality map phi_lambda. This packet records only that pairing family; the square and determinant conclusions are supplied separately below.

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    Route60 lower-level packet for conjugation naturality of the actual phi_lambda family.

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      Route60 lower-level packet for the first half of prop:simpleheaddet: the scalar pushout square vanishes on T.

      Since Route58 fixes the square to Extraspecial.extraspecialForm phi_lambda, this is the diagonal identity phi_lambda(t,t)=0 on T.

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        Route60 lower-level packet for the second half of prop:simpleheaddet: b_lambda(T,M)=0.

        For the Route58 extraspecial square this is the symmetrized-pairing statement phi_lambda(t,m)+phi_lambda(m,t)=0.

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          Route60 lower-level packet for the radical-containment step of prop:simpleheaddet: the polar radical of the symmetrized pushout pairing is contained in T.

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            New lower-level residual hooks #

            Construct the actual scalar pushout pairing family phi_lambda for K_lambda = K / ker lambda.

            Prove b_lambda(T,M)=0, expressed as symmetrized-pairing vanishing for the Route58 extraspecial square.

            Theorem-level projections to the current actual central-extension API #

            Route60 theorem-level construction of actual central-extension annihilation from the two manuscript halves q_lambda|_T=0 and b_lambda(T,M)=0.

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            • ⋯ = ⋯
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              Route60 theorem-level construction of actual central-extension polar-radical containment from the symmetrized-pairing radical statement.

              Equations
              • ⋯ = ⋯
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                Route60 same-family packet and Route58-compatible providers #

                Route60 packet: the actual scalar pushout pairing together with the three simple-head determinant ingredients needed after Route58 normalization.

                This is lower than MinimalBlockPushoutRoute58Data: it does not store current PhiData, NaturalityData, AnnihilationData, or RadicalContainmentData; those are theorem-level projections.

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                  Project Route60 to the Route58 normalized packet shape.

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                    Route-compatible hooks #

                    Construct Route60 data from the five lower-level §7 determinant-pushout packets.

                    Route58-shaped data supplied by Route60. Its axiom closure avoids the four Route58 residual names and exposes the lower-level Route60 packets instead.

                    Determinant-packet provider supplied by Route60.

                    This has the same consumed surface as the Route58 provider, but its nonstandard closure replaces the four remaining actual central-extension residuals by the five lower-level Route60 packets above.

                    Acceptance checks / exact residual report #