GF0084

gaussian_product_beta_index_transport

Equality of beta indices transports the actual bounded remainder entry in both occurrences of its modulus.

Alpha v34 checked-use · first admitted v30 · independently kernel and Lean verified; not Stable

Current library: Alpha v34, 4,223 checked-use theorems; Stable remains 432. Historical first admissions, original proof editions, and non-admitted aliases are preserved. Exact original first-admission records.

Inputs are genuine canonical signed-pair codes, not arbitrary naturals. Products start at the actual Gaussian identity, whose code is six. The factor list uses the proved prime-divisor property; irreducibility alone is not silently renamed primality. Uniqueness supplies equal lengths, a bounded bijection, and an actual unit at each match, including repeated factors. Units have empty factorizations and zero is excluded. Sorted primary representatives, Gaussian prime classification, and Eisenstein factorization are separate targets.

Exact theorem in conservative defined notation

∀ b. ∀ c. ∀ i. ∀ j. ∀ a. i = j → BetaAt(b,c,i,a)BetaAt(b,c,j,a)

Every linked abbreviation expands hygienically to the identical original native formula.

Definition DAG

Actual proof prerequisites

none
Original expanded first-order statement
forall b c i j a. i=j -> (((exists ff_h_gprod_index_transport_source. ff_h_gprod_index_transport_source + S (a) = S ((S (i)) * c)) /\ exists ff_q_gprod_index_transport_source. b = ff_q_gprod_index_transport_source * S ((S (i)) * c) + (a))) -> (((exists ff_h_gprod_index_transport_target. ff_h_gprod_index_transport_target + S (a) = S ((S (j)) * c)) /\ exists ff_q_gprod_index_transport_target. b = ff_q_gprod_index_transport_target * S ((S (j)) * c) + (a)))

Complete tactic proof in conservative notation

All 10 original proof lines are preserved. Only local proposition formulas are abbreviated; every abbreviation has an exact binder-safe expansion check. The linked exact edition contains the unchanged replay script.

Read the argument

Proof checkpoints

10 script commands · 3 reading checkpoints · 0 local claims

This is a reading aid, not a new proof or a proof-tree certificate. Checkpoint groups are consecutive commands, not inferred branch boundaries. Every step links to the preserved script.

Definition notation is shown below. Open the paired exact edition for the original native formulas. Source pairing is not a new equivalence certificate.

01Fix variables and assumptionsL1–7

Work with arbitrary variables or the premises of the current implication.

  1. L1
    intro b
  2. L2
    intro c
  3. L3
    intro i
  4. L4
    intro j
  5. L5
    intro a
  6. L6
    intro heq
  7. L7
    intro h
02Calculate and transport equalitiesL8–9

Carry out the recorded arithmetic or equality steps; inspect the exact commands for their direction and premises.

  1. L8
    rewrite heq at h
  2. L9
    rewrite heq at h
03Use earlier factsL10–10

Instantiate or apply named facts and discharge the corresponding proof obligations.

  1. L10
    exact h

Library-wide reading audit

Original defined command ledger · 10 lines
  1. 0001intro b
  2. 0002intro c
  3. 0003intro i
  4. 0004intro j
  5. 0005intro a
  6. 0006intro heq
  7. 0007intro h
  8. 0008rewrite heq at h
  9. 0009rewrite heq at h
  10. 0010exact h