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.
Exact expanded first-order arithmetic statement
forall z N. (exists ge_norm_rp_nonunit_actual_norm ge_norm_rn_nonunit_actual_norm ge_norm_ip_nonunit_actual_norm ge_norm_in_nonunit_actual_norm. ((exists ge_representation_real_code_nonunit_actual_normrepresentation ge_representation_imaginary_code_nonunit_actual_normrepresentation. (((z) = ((ge_representation_real_code_nonunit_actual_normrepresentation) + (ge_representation_imaginary_code_nonunit_actual_normrepresentation)) * S ((ge_representation_real_code_nonunit_actual_normrepresentation) + (ge_representation_imaginary_code_nonunit_actual_normrepresentation)) + ((ge_representation_imaginary_code_nonunit_actual_normrepresentation) + (ge_representation_imaginary_code_nonunit_actual_normrepresentation))) /\ ((exists ge_balance_positive_nonunit_actual_normrepresentationreal ge_balance_negative_nonunit_actual_normrepresentationreal. (((((ge_representation_real_code_nonunit_actual_normrepresentation) = 2 * (ge_balance_positive_nonunit_actual_normrepresentationreal) /\ (ge_balance_negative_nonunit_actual_normrepresentationreal) = 0) \/ exists ge_signed_half_nonunit_actual_normrepresentationrealdecode. (((ge_representation_real_code_nonunit_actual_normrepresentation) = 2 * ge_signed_half_nonunit_actual_normrepresentationrealdecode + 1 /\ (ge_balance_positive_nonunit_actual_normrepresentationreal) = 0) /\ (ge_balance_negative_nonunit_actual_normrepresentationreal) = S ge_signed_half_nonunit_actual_normrepresentationrealdecode))) /\ ((ge_norm_rp_nonunit_actual_norm) + ge_balance_negative_nonunit_actual_normrepresentationreal = (ge_norm_rn_nonunit_actual_norm) + ge_balance_positive_nonunit_actual_normrepresentationreal))) /\ (exists ge_balance_positive_nonunit_actual_normrepresentationimaginary ge_balance_negative_nonunit_actual_normrepresentationimaginary. (((((ge_representation_imaginary_code_nonunit_actual_normrepresentation) = 2 * (ge_balance_positive_nonunit_actual_normrepresentationimaginary) /\ (ge_balance_negative_nonunit_actual_normrepresentationimaginary) = 0) \/ exists ge_signed_half_nonunit_actual_normrepresentationimaginarydecode. (((ge_representation_imaginary_code_nonunit_actual_normrepresentation) = 2 * ge_signed_half_nonunit_actual_normrepresentationimaginarydecode + 1 /\ (ge_balance_positive_nonunit_actual_normrepresentationimaginary) = 0) /\ (ge_balance_negative_nonunit_actual_normrepresentationimaginary) = S ge_signed_half_nonunit_actual_normrepresentationimaginarydecode))) /\ ((ge_norm_ip_nonunit_actual_norm) + ge_balance_negative_nonunit_actual_normrepresentationimaginary = (ge_norm_in_nonunit_actual_norm) + ge_balance_positive_nonunit_actual_normrepresentationimaginary)))))) /\ (exists ge_real_square_nonunit_actual_normsquare ge_imaginary_square_nonunit_actual_normsquare. ((((((ge_norm_rp_nonunit_actual_norm) * (ge_norm_rp_nonunit_actual_norm))) + (((ge_norm_rn_nonunit_actual_norm) * (ge_norm_rn_nonunit_actual_norm)))) = ((ge_real_square_nonunit_actual_normsquare) + (((((ge_norm_rp_nonunit_actual_norm) * (ge_norm_rn_nonunit_actual_norm))) + (((ge_norm_rn_nonunit_actual_norm) * (ge_norm_rp_nonunit_actual_norm))))))) /\ ((((((ge_norm_ip_nonunit_actual_norm) * (ge_norm_ip_nonunit_actual_norm))) + (((ge_norm_in_nonunit_actual_norm) * (ge_norm_in_nonunit_actual_norm)))) = ((ge_imaginary_square_nonunit_actual_normsquare) + (((((ge_norm_ip_nonunit_actual_norm) * (ge_norm_in_nonunit_actual_norm))) + (((ge_norm_in_nonunit_actual_norm) * (ge_norm_ip_nonunit_actual_norm))))))) /\ ((N) = ge_real_square_nonunit_actual_normsquare + ge_imaginary_square_nonunit_actual_normsquare)))))) -> ~(N=0) -> ~(exists gr_inverse_nonunit_given. (exists ge_first_rp_nonunit_givenidentity ge_first_rn_nonunit_givenidentity ge_first_ip_nonunit_givenidentity ge_first_in_nonunit_givenidentity ge_second_rp_nonunit_givenidentity ge_second_rn_nonunit_givenidentity ge_second_ip_nonunit_givenidentity ge_second_in_nonunit_givenidentity. ((exists ge_representation_real_code_nonunit_givenidentityfirst ge_representation_imaginary_code_nonunit_givenidentityfirst. (((z) = ((ge_representation_real_code_nonunit_givenidentityfirst) + (ge_representation_imaginary_code_nonunit_givenidentityfirst)) * S ((ge_representation_real_code_nonunit_givenidentityfirst) + (ge_representation_imaginary_code_nonunit_givenidentityfirst)) + ((ge_representation_imaginary_code_nonunit_givenidentityfirst) + (ge_representation_imaginary_code_nonunit_givenidentityfirst))) /\ ((exists ge_balance_positive_nonunit_givenidentityfirstreal ge_balance_negative_nonunit_givenidentityfirstreal. (((((ge_representation_real_code_nonunit_givenidentityfirst) = 2 * (ge_balance_positive_nonunit_givenidentityfirstreal) /\ (ge_balance_negative_nonunit_givenidentityfirstreal) = 0) \/ exists ge_signed_half_nonunit_givenidentityfirstrealdecode. (((ge_representation_real_code_nonunit_givenidentityfirst) = 2 * ge_signed_half_nonunit_givenidentityfirstrealdecode + 1 /\ (ge_balance_positive_nonunit_givenidentityfirstreal) = 0) /\ (ge_balance_negative_nonunit_givenidentityfirstreal) = S ge_signed_half_nonunit_givenidentityfirstrealdecode))) /\ ((ge_first_rp_nonunit_givenidentity) + ge_balance_negative_nonunit_givenidentityfirstreal = (ge_first_rn_nonunit_givenidentity) + ge_balance_positive_nonunit_givenidentityfirstreal))) /\ (exists ge_balance_positive_nonunit_givenidentityfirstimaginary ge_balance_negative_nonunit_givenidentityfirstimaginary. (((((ge_representation_imaginary_code_nonunit_givenidentityfirst) = 2 * (ge_balance_positive_nonunit_givenidentityfirstimaginary) /\ (ge_balance_negative_nonunit_givenidentityfirstimaginary) = 0) \/ exists ge_signed_half_nonunit_givenidentityfirstimaginarydecode. (((ge_representation_imaginary_code_nonunit_givenidentityfirst) = 2 * ge_signed_half_nonunit_givenidentityfirstimaginarydecode + 1 /\ (ge_balance_positive_nonunit_givenidentityfirstimaginary) = 0) /\ (ge_balance_negative_nonunit_givenidentityfirstimaginary) = S ge_signed_half_nonunit_givenidentityfirstimaginarydecode))) /\ ((ge_first_ip_nonunit_givenidentity) + ge_balance_negative_nonunit_givenidentityfirstimaginary = (ge_first_in_nonunit_givenidentity) + ge_balance_positive_nonunit_givenidentityfirstimaginary)))))) /\ ((exists ge_representation_real_code_nonunit_givenidentitysecond ge_representation_imaginary_code_nonunit_givenidentitysecond. (((gr_inverse_nonunit_given) = ((ge_representation_real_code_nonunit_givenidentitysecond) + (ge_representation_imaginary_code_nonunit_givenidentitysecond)) * S ((ge_representation_real_code_nonunit_givenidentitysecond) + (ge_representation_imaginary_code_nonunit_givenidentitysecond)) + ((ge_representation_imaginary_code_nonunit_givenidentitysecond) + (ge_representation_imaginary_code_nonunit_givenidentitysecond))) /\ ((exists ge_balance_positive_nonunit_givenidentitysecondreal ge_balance_negative_nonunit_givenidentitysecondreal. (((((ge_representation_real_code_nonunit_givenidentitysecond) = 2 * (ge_balance_positive_nonunit_givenidentitysecondreal) /\ (ge_balance_negative_nonunit_givenidentitysecondreal) = 0) \/ exists ge_signed_half_nonunit_givenidentitysecondrealdecode. (((ge_representation_real_code_nonunit_givenidentitysecond) = 2 * ge_signed_half_nonunit_givenidentitysecondrealdecode + 1 /\ (ge_balance_positive_nonunit_givenidentitysecondreal) = 0) /\ (ge_balance_negative_nonunit_givenidentitysecondreal) = S ge_signed_half_nonunit_givenidentitysecondrealdecode))) /\ ((ge_second_rp_nonunit_givenidentity) + ge_balance_negative_nonunit_givenidentitysecondreal = (ge_second_rn_nonunit_givenidentity) + ge_balance_positive_nonunit_givenidentitysecondreal))) /\ (exists ge_balance_positive_nonunit_givenidentitysecondimaginary ge_balance_negative_nonunit_givenidentitysecondimaginary. (((((ge_representation_imaginary_code_nonunit_givenidentitysecond) = 2 * (ge_balance_positive_nonunit_givenidentitysecondimaginary) /\ (ge_balance_negative_nonunit_givenidentitysecondimaginary) = 0) \/ exists ge_signed_half_nonunit_givenidentitysecondimaginarydecode. (((ge_representation_imaginary_code_nonunit_givenidentitysecond) = 2 * ge_signed_half_nonunit_givenidentitysecondimaginarydecode + 1 /\ (ge_balance_positive_nonunit_givenidentitysecondimaginary) = 0) /\ (ge_balance_negative_nonunit_givenidentitysecondimaginary) = S ge_signed_half_nonunit_givenidentitysecondimaginarydecode))) /\ ((ge_second_ip_nonunit_givenidentity) + ge_balance_negative_nonunit_givenidentitysecondimaginary = (ge_second_in_nonunit_givenidentity) + ge_balance_positive_nonunit_givenidentitysecondimaginary)))))) /\ (exists ge_representation_real_code_nonunit_givenidentityoutput ge_representation_imaginary_code_nonunit_givenidentityoutput. (((6) = ((ge_representation_real_code_nonunit_givenidentityoutput) + (ge_representation_imaginary_code_nonunit_givenidentityoutput)) * S ((ge_representation_real_code_nonunit_givenidentityoutput) + (ge_representation_imaginary_code_nonunit_givenidentityoutput)) + ((ge_representation_imaginary_code_nonunit_givenidentityoutput) + (ge_representation_imaginary_code_nonunit_givenidentityoutput))) /\ ((exists ge_balance_positive_nonunit_givenidentityoutputreal ge_balance_negative_nonunit_givenidentityoutputreal. (((((ge_representation_real_code_nonunit_givenidentityoutput) = 2 * (ge_balance_positive_nonunit_givenidentityoutputreal) /\ (ge_balance_negative_nonunit_givenidentityoutputreal) = 0) \/ exists ge_signed_half_nonunit_givenidentityoutputrealdecode. (((ge_representation_real_code_nonunit_givenidentityoutput) = 2 * ge_signed_half_nonunit_givenidentityoutputrealdecode + 1 /\ (ge_balance_positive_nonunit_givenidentityoutputreal) = 0) /\ (ge_balance_negative_nonunit_givenidentityoutputreal) = S ge_signed_half_nonunit_givenidentityoutputrealdecode))) /\ ((((((((ge_first_rp_nonunit_givenidentity) * (ge_second_rp_nonunit_givenidentity))) + (((ge_first_rn_nonunit_givenidentity) * (ge_second_rn_nonunit_givenidentity))))) + (((((ge_first_ip_nonunit_givenidentity) * (ge_second_in_nonunit_givenidentity))) + (((ge_first_in_nonunit_givenidentity) * (ge_second_ip_nonunit_givenidentity))))))) + ge_balance_negative_nonunit_givenidentityoutputreal = (((((((ge_first_rp_nonunit_givenidentity) * (ge_second_rn_nonunit_givenidentity))) + (((ge_first_rn_nonunit_givenidentity) * (ge_second_rp_nonunit_givenidentity))))) + (((((ge_first_ip_nonunit_givenidentity) * (ge_second_ip_nonunit_givenidentity))) + (((ge_first_in_nonunit_givenidentity) * (ge_second_in_nonunit_givenidentity))))))) + ge_balance_positive_nonunit_givenidentityoutputreal))) /\ (exists ge_balance_positive_nonunit_givenidentityoutputimaginary ge_balance_negative_nonunit_givenidentityoutputimaginary. (((((ge_representation_imaginary_code_nonunit_givenidentityoutput) = 2 * (ge_balance_positive_nonunit_givenidentityoutputimaginary) /\ (ge_balance_negative_nonunit_givenidentityoutputimaginary) = 0) \/ exists ge_signed_half_nonunit_givenidentityoutputimaginarydecode. (((ge_representation_imaginary_code_nonunit_givenidentityoutput) = 2 * ge_signed_half_nonunit_givenidentityoutputimaginarydecode + 1 /\ (ge_balance_positive_nonunit_givenidentityoutputimaginary) = 0) /\ (ge_balance_negative_nonunit_givenidentityoutputimaginary) = S ge_signed_half_nonunit_givenidentityoutputimaginarydecode))) /\ ((((((((ge_first_rp_nonunit_givenidentity) * (ge_second_ip_nonunit_givenidentity))) + (((ge_first_rn_nonunit_givenidentity) * (ge_second_in_nonunit_givenidentity))))) + (((((ge_first_ip_nonunit_givenidentity) * (ge_second_rp_nonunit_givenidentity))) + (((ge_first_in_nonunit_givenidentity) * (ge_second_rn_nonunit_givenidentity))))))) + ge_balance_negative_nonunit_givenidentityoutputimaginary = (((((((ge_first_rp_nonunit_givenidentity) * (ge_second_in_nonunit_givenidentity))) + (((ge_first_rn_nonunit_givenidentity) * (ge_second_ip_nonunit_givenidentity))))) + (((((ge_first_ip_nonunit_givenidentity) * (ge_second_rn_nonunit_givenidentity))) + (((ge_first_in_nonunit_givenidentity) * (ge_second_rp_nonunit_givenidentity))))))) + ge_balance_positive_nonunit_givenidentityoutputimaginary)))))))))) -> (exists ge_gap_nonunit_norm_lower. ge_gap_nonunit_norm_lower + (2) = (N))Constructive proof overview
Generated structural guide
The actual nonzero norm of a Gaussian nonunit is at least two; a norm-one exception would construct an inverse.
The unchanged tactic script uses 3 declared prerequisites and contains 18 exact native proof lines.
Alpha v34 checked-use · first admitted v30 · independently kernel and Lean verified; not Stable
Proof neighborhood
Direct dependencies
GF0072 gaussian_search_two_le_nonzero_not_one GF001A gaussian_norm_one_is_unit GF0015 gaussian_norm_value_transportDirect dependents
Formal native tactic body
Dependencies are introduced as named hypotheses before line 1. Local theorem links identify exact declared prerequisites. This exact body belongs to a complete independently kernel-checked constructive proof bundle and has Alpha checked-use authority; it does not imply Stable membership.
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 (3)
01Fix variables and assumptionsL1–5
02Use earlier factsL6–8
03Fix variables and assumptionsL9–9
Work with arbitrary variables or the premises of the current implication.
- L9
intro hone
04Use earlier factsL10–18
Instantiate or apply named facts and discharge the corresponding proof obligations.
Original exact command ledger · 18 lines
- 0001
intro z - 0002
intro N - 0003
intro hn - 0004
intro hzero - 0005
intro hu - 0006
specialize gaussian_search_two_le_nonzero_not_one (N) - 0007
apply gaussian_search_two_le_nonzero_not_one - 0008
exact hzero - 0009
intro hone - 0010
apply hu - 0011
specialize gaussian_norm_one_is_unit (z) - 0012
apply gaussian_norm_one_is_unit - 0013
specialize gaussian_norm_value_transport (z) - 0014
specialize gaussian_norm_value_transport (N) - 0015
specialize gaussian_norm_value_transport (1) - 0016
apply gaussian_norm_value_transport - 0017
exact hone - 0018
exact hn