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
∀ d. ∀ z. ∀ D. ∀ N. GDvd(d,z) → GNorm(d,D) → GNorm(z,N) → ∃ x. ∃ y. GMul(d,x,z) ∧ (GNorm(x,y) ∧ N = D · y)
Every linked abbreviation expands hygienically to the identical original native formula.
Definition DAG
Actual proof prerequisites
Complete tactic proof in conservative notation
All 37 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
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.
Named ingredients (1)
01Fix variables and assumptionsL1–7
02Separate the logical casesL8–8
Follow the explicit conjunction, disjunction, witness, or contradiction step recorded below.
- L8
cases hdiv
03Establish hnL9–16
Establish this local claim before using it. It is not an additional assumption. The following proof commands apply gaussian norm exists.
04Separate the logical casesL17–17
Follow the explicit conjunction, disjunction, witness, or contradiction step recorded below.
- L17
cases hn
05Construct an explicit witnessL18–19
06Separate the logical casesL20–20
Follow the explicit conjunction, disjunction, witness, or contradiction step recorded below.
- L20
split
07Use earlier factsL21–21
Instantiate or apply named facts and discharge the corresponding proof obligations.
- L21
exact hdiv_witness
08Separate the logical casesL22–22
Follow the explicit conjunction, disjunction, witness, or contradiction step recorded below.
- L22
split
09Use earlier factsL23–32
Instantiate or apply named facts and discharge the corresponding proof obligations.
- L23
exact hn_witness - L24
specialize gaussian_norm_functional (z) - L25
specialize gaussian_norm_functional (N) - L26
specialize gaussian_norm_functional (D*x1) - L27
apply gaussian_norm_functional - L28
exact hz - L29
specialize gaussian_norm_multiply (d) - L30
specialize gaussian_norm_multiply (x) - L31
specialize gaussian_norm_multiply (z) - L32
specialize gaussian_norm_multiply (D)
Original defined command ledger · 37 lines
- 0001
intro d - 0002
intro z - 0003
intro D - 0004
intro N - 0005
intro hdiv - 0006
intro hd - 0007
intro hz - 0008
cases hdiv - 0009
have hn : ∃ Q. GNorm(x,Q) - 0010
specialize gaussian_norm_exists (x) - 0011
apply gaussian_norm_exists - 0012
specialize gaussian_multiply_input_right_valid (d) - 0013
specialize gaussian_multiply_input_right_valid (x) - 0014
specialize gaussian_multiply_input_right_valid (z) - 0015
apply gaussian_multiply_input_right_valid - 0016
exact hdiv_witness - 0017
cases hn - 0018
exists (x) - 0019
exists (x1) - 0020
split - 0021
exact hdiv_witness - 0022
split - 0023
exact hn_witness - 0024
specialize gaussian_norm_functional (z) - 0025
specialize gaussian_norm_functional (N) - 0026
specialize gaussian_norm_functional (D*x1) - 0027
apply gaussian_norm_functional - 0028
exact hz - 0029
specialize gaussian_norm_multiply (d) - 0030
specialize gaussian_norm_multiply (x) - 0031
specialize gaussian_norm_multiply (z) - 0032
specialize gaussian_norm_multiply (D) - 0033
specialize gaussian_norm_multiply (x1) - 0034
apply gaussian_norm_multiply - 0035
exact hd - 0036
exact hn_witness - 0037
exact hdiv_witness