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 a b c t. ~(c=0) -> (exists ge_first_rp_cancel_right_product_first ge_first_rn_cancel_right_product_first ge_first_ip_cancel_right_product_first ge_first_in_cancel_right_product_first ge_second_rp_cancel_right_product_first ge_second_rn_cancel_right_product_first ge_second_ip_cancel_right_product_first ge_second_in_cancel_right_product_first. ((exists ge_representation_real_code_cancel_right_product_firstfirst ge_representation_imaginary_code_cancel_right_product_firstfirst. (((a) = ((ge_representation_real_code_cancel_right_product_firstfirst) + (ge_representation_imaginary_code_cancel_right_product_firstfirst)) * S ((ge_representation_real_code_cancel_right_product_firstfirst) + (ge_representation_imaginary_code_cancel_right_product_firstfirst)) + ((ge_representation_imaginary_code_cancel_right_product_firstfirst) + (ge_representation_imaginary_code_cancel_right_product_firstfirst))) /\ ((exists ge_balance_positive_cancel_right_product_firstfirstreal ge_balance_negative_cancel_right_product_firstfirstreal. (((((ge_representation_real_code_cancel_right_product_firstfirst) = 2 * (ge_balance_positive_cancel_right_product_firstfirstreal) /\ (ge_balance_negative_cancel_right_product_firstfirstreal) = 0) \/ exists ge_signed_half_cancel_right_product_firstfirstrealdecode. (((ge_representation_real_code_cancel_right_product_firstfirst) = 2 * ge_signed_half_cancel_right_product_firstfirstrealdecode + 1 /\ (ge_balance_positive_cancel_right_product_firstfirstreal) = 0) /\ (ge_balance_negative_cancel_right_product_firstfirstreal) = S ge_signed_half_cancel_right_product_firstfirstrealdecode))) /\ ((ge_first_rp_cancel_right_product_first) + ge_balance_negative_cancel_right_product_firstfirstreal = (ge_first_rn_cancel_right_product_first) + ge_balance_positive_cancel_right_product_firstfirstreal))) /\ (exists ge_balance_positive_cancel_right_product_firstfirstimaginary ge_balance_negative_cancel_right_product_firstfirstimaginary. (((((ge_representation_imaginary_code_cancel_right_product_firstfirst) = 2 * (ge_balance_positive_cancel_right_product_firstfirstimaginary) /\ (ge_balance_negative_cancel_right_product_firstfirstimaginary) = 0) \/ exists ge_signed_half_cancel_right_product_firstfirstimaginarydecode. (((ge_representation_imaginary_code_cancel_right_product_firstfirst) = 2 * ge_signed_half_cancel_right_product_firstfirstimaginarydecode + 1 /\ (ge_balance_positive_cancel_right_product_firstfirstimaginary) = 0) /\ (ge_balance_negative_cancel_right_product_firstfirstimaginary) = S ge_signed_half_cancel_right_product_firstfirstimaginarydecode))) /\ ((ge_first_ip_cancel_right_product_first) + ge_balance_negative_cancel_right_product_firstfirstimaginary = (ge_first_in_cancel_right_product_first) + ge_balance_positive_cancel_right_product_firstfirstimaginary)))))) /\ ((exists ge_representation_real_code_cancel_right_product_firstsecond ge_representation_imaginary_code_cancel_right_product_firstsecond. (((c) = ((ge_representation_real_code_cancel_right_product_firstsecond) + (ge_representation_imaginary_code_cancel_right_product_firstsecond)) * S ((ge_representation_real_code_cancel_right_product_firstsecond) + (ge_representation_imaginary_code_cancel_right_product_firstsecond)) + ((ge_representation_imaginary_code_cancel_right_product_firstsecond) + (ge_representation_imaginary_code_cancel_right_product_firstsecond))) /\ ((exists ge_balance_positive_cancel_right_product_firstsecondreal ge_balance_negative_cancel_right_product_firstsecondreal. (((((ge_representation_real_code_cancel_right_product_firstsecond) = 2 * (ge_balance_positive_cancel_right_product_firstsecondreal) /\ (ge_balance_negative_cancel_right_product_firstsecondreal) = 0) \/ exists ge_signed_half_cancel_right_product_firstsecondrealdecode. (((ge_representation_real_code_cancel_right_product_firstsecond) = 2 * ge_signed_half_cancel_right_product_firstsecondrealdecode + 1 /\ (ge_balance_positive_cancel_right_product_firstsecondreal) = 0) /\ (ge_balance_negative_cancel_right_product_firstsecondreal) = S ge_signed_half_cancel_right_product_firstsecondrealdecode))) /\ ((ge_second_rp_cancel_right_product_first) + ge_balance_negative_cancel_right_product_firstsecondreal = (ge_second_rn_cancel_right_product_first) + ge_balance_positive_cancel_right_product_firstsecondreal))) /\ (exists ge_balance_positive_cancel_right_product_firstsecondimaginary ge_balance_negative_cancel_right_product_firstsecondimaginary. (((((ge_representation_imaginary_code_cancel_right_product_firstsecond) = 2 * (ge_balance_positive_cancel_right_product_firstsecondimaginary) /\ (ge_balance_negative_cancel_right_product_firstsecondimaginary) = 0) \/ exists ge_signed_half_cancel_right_product_firstsecondimaginarydecode. (((ge_representation_imaginary_code_cancel_right_product_firstsecond) = 2 * ge_signed_half_cancel_right_product_firstsecondimaginarydecode + 1 /\ (ge_balance_positive_cancel_right_product_firstsecondimaginary) = 0) /\ (ge_balance_negative_cancel_right_product_firstsecondimaginary) = S ge_signed_half_cancel_right_product_firstsecondimaginarydecode))) /\ ((ge_second_ip_cancel_right_product_first) + ge_balance_negative_cancel_right_product_firstsecondimaginary = (ge_second_in_cancel_right_product_first) + ge_balance_positive_cancel_right_product_firstsecondimaginary)))))) /\ (exists ge_representation_real_code_cancel_right_product_firstoutput ge_representation_imaginary_code_cancel_right_product_firstoutput. (((t) = ((ge_representation_real_code_cancel_right_product_firstoutput) + (ge_representation_imaginary_code_cancel_right_product_firstoutput)) * S ((ge_representation_real_code_cancel_right_product_firstoutput) + (ge_representation_imaginary_code_cancel_right_product_firstoutput)) + ((ge_representation_imaginary_code_cancel_right_product_firstoutput) + (ge_representation_imaginary_code_cancel_right_product_firstoutput))) /\ ((exists ge_balance_positive_cancel_right_product_firstoutputreal ge_balance_negative_cancel_right_product_firstoutputreal. (((((ge_representation_real_code_cancel_right_product_firstoutput) = 2 * (ge_balance_positive_cancel_right_product_firstoutputreal) /\ (ge_balance_negative_cancel_right_product_firstoutputreal) = 0) \/ exists ge_signed_half_cancel_right_product_firstoutputrealdecode. (((ge_representation_real_code_cancel_right_product_firstoutput) = 2 * ge_signed_half_cancel_right_product_firstoutputrealdecode + 1 /\ (ge_balance_positive_cancel_right_product_firstoutputreal) = 0) /\ (ge_balance_negative_cancel_right_product_firstoutputreal) = S ge_signed_half_cancel_right_product_firstoutputrealdecode))) /\ ((((((((ge_first_rp_cancel_right_product_first) * (ge_second_rp_cancel_right_product_first))) + (((ge_first_rn_cancel_right_product_first) * (ge_second_rn_cancel_right_product_first))))) + (((((ge_first_ip_cancel_right_product_first) * (ge_second_in_cancel_right_product_first))) + (((ge_first_in_cancel_right_product_first) * (ge_second_ip_cancel_right_product_first))))))) + ge_balance_negative_cancel_right_product_firstoutputreal = (((((((ge_first_rp_cancel_right_product_first) * (ge_second_rn_cancel_right_product_first))) + (((ge_first_rn_cancel_right_product_first) * (ge_second_rp_cancel_right_product_first))))) + (((((ge_first_ip_cancel_right_product_first) * (ge_second_ip_cancel_right_product_first))) + (((ge_first_in_cancel_right_product_first) * (ge_second_in_cancel_right_product_first))))))) + ge_balance_positive_cancel_right_product_firstoutputreal))) /\ (exists ge_balance_positive_cancel_right_product_firstoutputimaginary ge_balance_negative_cancel_right_product_firstoutputimaginary. (((((ge_representation_imaginary_code_cancel_right_product_firstoutput) = 2 * (ge_balance_positive_cancel_right_product_firstoutputimaginary) /\ (ge_balance_negative_cancel_right_product_firstoutputimaginary) = 0) \/ exists ge_signed_half_cancel_right_product_firstoutputimaginarydecode. (((ge_representation_imaginary_code_cancel_right_product_firstoutput) = 2 * ge_signed_half_cancel_right_product_firstoutputimaginarydecode + 1 /\ (ge_balance_positive_cancel_right_product_firstoutputimaginary) = 0) /\ (ge_balance_negative_cancel_right_product_firstoutputimaginary) = S ge_signed_half_cancel_right_product_firstoutputimaginarydecode))) /\ ((((((((ge_first_rp_cancel_right_product_first) * (ge_second_ip_cancel_right_product_first))) + (((ge_first_rn_cancel_right_product_first) * (ge_second_in_cancel_right_product_first))))) + (((((ge_first_ip_cancel_right_product_first) * (ge_second_rp_cancel_right_product_first))) + (((ge_first_in_cancel_right_product_first) * (ge_second_rn_cancel_right_product_first))))))) + ge_balance_negative_cancel_right_product_firstoutputimaginary = (((((((ge_first_rp_cancel_right_product_first) * (ge_second_in_cancel_right_product_first))) + (((ge_first_rn_cancel_right_product_first) * (ge_second_ip_cancel_right_product_first))))) + (((((ge_first_ip_cancel_right_product_first) * (ge_second_rn_cancel_right_product_first))) + (((ge_first_in_cancel_right_product_first) * (ge_second_rp_cancel_right_product_first))))))) + ge_balance_positive_cancel_right_product_firstoutputimaginary))))))))) -> (exists ge_first_rp_cancel_right_product_second ge_first_rn_cancel_right_product_second ge_first_ip_cancel_right_product_second ge_first_in_cancel_right_product_second ge_second_rp_cancel_right_product_second ge_second_rn_cancel_right_product_second ge_second_ip_cancel_right_product_second ge_second_in_cancel_right_product_second. ((exists ge_representation_real_code_cancel_right_product_secondfirst ge_representation_imaginary_code_cancel_right_product_secondfirst. (((b) = ((ge_representation_real_code_cancel_right_product_secondfirst) + (ge_representation_imaginary_code_cancel_right_product_secondfirst)) * S ((ge_representation_real_code_cancel_right_product_secondfirst) + (ge_representation_imaginary_code_cancel_right_product_secondfirst)) + ((ge_representation_imaginary_code_cancel_right_product_secondfirst) + (ge_representation_imaginary_code_cancel_right_product_secondfirst))) /\ ((exists ge_balance_positive_cancel_right_product_secondfirstreal ge_balance_negative_cancel_right_product_secondfirstreal. (((((ge_representation_real_code_cancel_right_product_secondfirst) = 2 * (ge_balance_positive_cancel_right_product_secondfirstreal) /\ (ge_balance_negative_cancel_right_product_secondfirstreal) = 0) \/ exists ge_signed_half_cancel_right_product_secondfirstrealdecode. (((ge_representation_real_code_cancel_right_product_secondfirst) = 2 * ge_signed_half_cancel_right_product_secondfirstrealdecode + 1 /\ (ge_balance_positive_cancel_right_product_secondfirstreal) = 0) /\ (ge_balance_negative_cancel_right_product_secondfirstreal) = S ge_signed_half_cancel_right_product_secondfirstrealdecode))) /\ ((ge_first_rp_cancel_right_product_second) + ge_balance_negative_cancel_right_product_secondfirstreal = (ge_first_rn_cancel_right_product_second) + ge_balance_positive_cancel_right_product_secondfirstreal))) /\ (exists ge_balance_positive_cancel_right_product_secondfirstimaginary ge_balance_negative_cancel_right_product_secondfirstimaginary. (((((ge_representation_imaginary_code_cancel_right_product_secondfirst) = 2 * (ge_balance_positive_cancel_right_product_secondfirstimaginary) /\ (ge_balance_negative_cancel_right_product_secondfirstimaginary) = 0) \/ exists ge_signed_half_cancel_right_product_secondfirstimaginarydecode. (((ge_representation_imaginary_code_cancel_right_product_secondfirst) = 2 * ge_signed_half_cancel_right_product_secondfirstimaginarydecode + 1 /\ (ge_balance_positive_cancel_right_product_secondfirstimaginary) = 0) /\ (ge_balance_negative_cancel_right_product_secondfirstimaginary) = S ge_signed_half_cancel_right_product_secondfirstimaginarydecode))) /\ ((ge_first_ip_cancel_right_product_second) + ge_balance_negative_cancel_right_product_secondfirstimaginary = (ge_first_in_cancel_right_product_second) + ge_balance_positive_cancel_right_product_secondfirstimaginary)))))) /\ ((exists ge_representation_real_code_cancel_right_product_secondsecond ge_representation_imaginary_code_cancel_right_product_secondsecond. (((c) = ((ge_representation_real_code_cancel_right_product_secondsecond) + (ge_representation_imaginary_code_cancel_right_product_secondsecond)) * S ((ge_representation_real_code_cancel_right_product_secondsecond) + (ge_representation_imaginary_code_cancel_right_product_secondsecond)) + ((ge_representation_imaginary_code_cancel_right_product_secondsecond) + (ge_representation_imaginary_code_cancel_right_product_secondsecond))) /\ ((exists ge_balance_positive_cancel_right_product_secondsecondreal ge_balance_negative_cancel_right_product_secondsecondreal. (((((ge_representation_real_code_cancel_right_product_secondsecond) = 2 * (ge_balance_positive_cancel_right_product_secondsecondreal) /\ (ge_balance_negative_cancel_right_product_secondsecondreal) = 0) \/ exists ge_signed_half_cancel_right_product_secondsecondrealdecode. (((ge_representation_real_code_cancel_right_product_secondsecond) = 2 * ge_signed_half_cancel_right_product_secondsecondrealdecode + 1 /\ (ge_balance_positive_cancel_right_product_secondsecondreal) = 0) /\ (ge_balance_negative_cancel_right_product_secondsecondreal) = S ge_signed_half_cancel_right_product_secondsecondrealdecode))) /\ ((ge_second_rp_cancel_right_product_second) + ge_balance_negative_cancel_right_product_secondsecondreal = (ge_second_rn_cancel_right_product_second) + ge_balance_positive_cancel_right_product_secondsecondreal))) /\ (exists ge_balance_positive_cancel_right_product_secondsecondimaginary ge_balance_negative_cancel_right_product_secondsecondimaginary. (((((ge_representation_imaginary_code_cancel_right_product_secondsecond) = 2 * (ge_balance_positive_cancel_right_product_secondsecondimaginary) /\ (ge_balance_negative_cancel_right_product_secondsecondimaginary) = 0) \/ exists ge_signed_half_cancel_right_product_secondsecondimaginarydecode. (((ge_representation_imaginary_code_cancel_right_product_secondsecond) = 2 * ge_signed_half_cancel_right_product_secondsecondimaginarydecode + 1 /\ (ge_balance_positive_cancel_right_product_secondsecondimaginary) = 0) /\ (ge_balance_negative_cancel_right_product_secondsecondimaginary) = S ge_signed_half_cancel_right_product_secondsecondimaginarydecode))) /\ ((ge_second_ip_cancel_right_product_second) + ge_balance_negative_cancel_right_product_secondsecondimaginary = (ge_second_in_cancel_right_product_second) + ge_balance_positive_cancel_right_product_secondsecondimaginary)))))) /\ (exists ge_representation_real_code_cancel_right_product_secondoutput ge_representation_imaginary_code_cancel_right_product_secondoutput. (((t) = ((ge_representation_real_code_cancel_right_product_secondoutput) + (ge_representation_imaginary_code_cancel_right_product_secondoutput)) * S ((ge_representation_real_code_cancel_right_product_secondoutput) + (ge_representation_imaginary_code_cancel_right_product_secondoutput)) + ((ge_representation_imaginary_code_cancel_right_product_secondoutput) + (ge_representation_imaginary_code_cancel_right_product_secondoutput))) /\ ((exists ge_balance_positive_cancel_right_product_secondoutputreal ge_balance_negative_cancel_right_product_secondoutputreal. (((((ge_representation_real_code_cancel_right_product_secondoutput) = 2 * (ge_balance_positive_cancel_right_product_secondoutputreal) /\ (ge_balance_negative_cancel_right_product_secondoutputreal) = 0) \/ exists ge_signed_half_cancel_right_product_secondoutputrealdecode. (((ge_representation_real_code_cancel_right_product_secondoutput) = 2 * ge_signed_half_cancel_right_product_secondoutputrealdecode + 1 /\ (ge_balance_positive_cancel_right_product_secondoutputreal) = 0) /\ (ge_balance_negative_cancel_right_product_secondoutputreal) = S ge_signed_half_cancel_right_product_secondoutputrealdecode))) /\ ((((((((ge_first_rp_cancel_right_product_second) * (ge_second_rp_cancel_right_product_second))) + (((ge_first_rn_cancel_right_product_second) * (ge_second_rn_cancel_right_product_second))))) + (((((ge_first_ip_cancel_right_product_second) * (ge_second_in_cancel_right_product_second))) + (((ge_first_in_cancel_right_product_second) * (ge_second_ip_cancel_right_product_second))))))) + ge_balance_negative_cancel_right_product_secondoutputreal = (((((((ge_first_rp_cancel_right_product_second) * (ge_second_rn_cancel_right_product_second))) + (((ge_first_rn_cancel_right_product_second) * (ge_second_rp_cancel_right_product_second))))) + (((((ge_first_ip_cancel_right_product_second) * (ge_second_ip_cancel_right_product_second))) + (((ge_first_in_cancel_right_product_second) * (ge_second_in_cancel_right_product_second))))))) + ge_balance_positive_cancel_right_product_secondoutputreal))) /\ (exists ge_balance_positive_cancel_right_product_secondoutputimaginary ge_balance_negative_cancel_right_product_secondoutputimaginary. (((((ge_representation_imaginary_code_cancel_right_product_secondoutput) = 2 * (ge_balance_positive_cancel_right_product_secondoutputimaginary) /\ (ge_balance_negative_cancel_right_product_secondoutputimaginary) = 0) \/ exists ge_signed_half_cancel_right_product_secondoutputimaginarydecode. (((ge_representation_imaginary_code_cancel_right_product_secondoutput) = 2 * ge_signed_half_cancel_right_product_secondoutputimaginarydecode + 1 /\ (ge_balance_positive_cancel_right_product_secondoutputimaginary) = 0) /\ (ge_balance_negative_cancel_right_product_secondoutputimaginary) = S ge_signed_half_cancel_right_product_secondoutputimaginarydecode))) /\ ((((((((ge_first_rp_cancel_right_product_second) * (ge_second_ip_cancel_right_product_second))) + (((ge_first_rn_cancel_right_product_second) * (ge_second_in_cancel_right_product_second))))) + (((((ge_first_ip_cancel_right_product_second) * (ge_second_rp_cancel_right_product_second))) + (((ge_first_in_cancel_right_product_second) * (ge_second_rn_cancel_right_product_second))))))) + ge_balance_negative_cancel_right_product_secondoutputimaginary = (((((((ge_first_rp_cancel_right_product_second) * (ge_second_in_cancel_right_product_second))) + (((ge_first_rn_cancel_right_product_second) * (ge_second_ip_cancel_right_product_second))))) + (((((ge_first_ip_cancel_right_product_second) * (ge_second_rn_cancel_right_product_second))) + (((ge_first_in_cancel_right_product_second) * (ge_second_rp_cancel_right_product_second))))))) + ge_balance_positive_cancel_right_product_secondoutputimaginary))))))))) -> a=bConstructive proof overview
Generated structural guide
A nonzero common right Gaussian factor cancels in the actual canonical multiplication graph.
The unchanged tactic script uses 2 declared prerequisites and contains 23 exact native proof lines.
Alpha v34 checked-use · first admitted v30 · independently kernel and Lean verified; not Stable
Proof neighborhood
Direct dependencies
Direct 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 (2)
01Fix variables and assumptionsL1–7
02Use earlier factsL8–17
Instantiate or apply named facts and discharge the corresponding proof obligations.
- L8
specialize gaussian_multiply_cancel_left (c) - L9
specialize gaussian_multiply_cancel_left (a) - L10
specialize gaussian_multiply_cancel_left (b) - L11
specialize gaussian_multiply_cancel_left (t) - L12
apply gaussian_multiply_cancel_left - L13
exact hc - L14
specialize gaussian_multiply_commutative (a) - L15
specialize gaussian_multiply_commutative (c) - L16
specialize gaussian_multiply_commutative (t) - L17
apply gaussian_multiply_commutative
03Use earlier factsL18–23
Original exact command ledger · 23 lines
- 0001
intro a - 0002
intro b - 0003
intro c - 0004
intro t - 0005
intro hc - 0006
intro hA - 0007
intro hB - 0008
specialize gaussian_multiply_cancel_left (c) - 0009
specialize gaussian_multiply_cancel_left (a) - 0010
specialize gaussian_multiply_cancel_left (b) - 0011
specialize gaussian_multiply_cancel_left (t) - 0012
apply gaussian_multiply_cancel_left - 0013
exact hc - 0014
specialize gaussian_multiply_commutative (a) - 0015
specialize gaussian_multiply_commutative (c) - 0016
specialize gaussian_multiply_commutative (t) - 0017
apply gaussian_multiply_commutative - 0018
exact hA - 0019
specialize gaussian_multiply_commutative (b) - 0020
specialize gaussian_multiply_commutative (c) - 0021
specialize gaussian_multiply_commutative (t) - 0022
apply gaussian_multiply_commutative - 0023
exact hB