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Theorem opprring 13575
Description: An opposite ring is a ring. (Contributed by Mario Carneiro, 1-Dec-2014.) (Revised by Mario Carneiro, 30-Aug-2015.)
Hypothesis
Ref Expression
opprbas.1 𝑂 = (oppr𝑅)
Assertion
Ref Expression
opprring (𝑅 ∈ Ring → 𝑂 ∈ Ring)

Proof of Theorem opprring
Dummy variables 𝑥 𝑦 𝑧 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 opprbas.1 . . 3 𝑂 = (oppr𝑅)
2 eqid 2193 . . 3 (Base‘𝑅) = (Base‘𝑅)
31, 2opprbasg 13571 . 2 (𝑅 ∈ Ring → (Base‘𝑅) = (Base‘𝑂))
4 eqid 2193 . . 3 (+g𝑅) = (+g𝑅)
51, 4oppraddg 13572 . 2 (𝑅 ∈ Ring → (+g𝑅) = (+g𝑂))
6 eqidd 2194 . 2 (𝑅 ∈ Ring → (.r𝑂) = (.r𝑂))
7 ringgrp 13497 . . 3 (𝑅 ∈ Ring → 𝑅 ∈ Grp)
8 eqidd 2194 . . . 4 (𝑅 ∈ Ring → (Base‘𝑅) = (Base‘𝑅))
95oveqdr 5946 . . . 4 ((𝑅 ∈ Ring ∧ (𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅))) → (𝑥(+g𝑅)𝑦) = (𝑥(+g𝑂)𝑦))
108, 3, 9grppropd 13089 . . 3 (𝑅 ∈ Ring → (𝑅 ∈ Grp ↔ 𝑂 ∈ Grp))
117, 10mpbid 147 . 2 (𝑅 ∈ Ring → 𝑂 ∈ Grp)
12 eqid 2193 . . . 4 (.r𝑅) = (.r𝑅)
13 eqid 2193 . . . 4 (.r𝑂) = (.r𝑂)
142, 12, 1, 13opprmulg 13567 . . 3 ((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅)) → (𝑥(.r𝑂)𝑦) = (𝑦(.r𝑅)𝑥))
152, 12ringcl 13509 . . . 4 ((𝑅 ∈ Ring ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑥 ∈ (Base‘𝑅)) → (𝑦(.r𝑅)𝑥) ∈ (Base‘𝑅))
16153com23 1211 . . 3 ((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅)) → (𝑦(.r𝑅)𝑥) ∈ (Base‘𝑅))
1714, 16eqeltrd 2270 . 2 ((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅)) → (𝑥(.r𝑂)𝑦) ∈ (Base‘𝑅))
18 simpl 109 . . . 4 ((𝑅 ∈ Ring ∧ (𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅))) → 𝑅 ∈ Ring)
19 simpr3 1007 . . . 4 ((𝑅 ∈ Ring ∧ (𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅))) → 𝑧 ∈ (Base‘𝑅))
20 simpr2 1006 . . . 4 ((𝑅 ∈ Ring ∧ (𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅))) → 𝑦 ∈ (Base‘𝑅))
21 simpr1 1005 . . . 4 ((𝑅 ∈ Ring ∧ (𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅))) → 𝑥 ∈ (Base‘𝑅))
222, 12ringass 13512 . . . 4 ((𝑅 ∈ Ring ∧ (𝑧 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑥 ∈ (Base‘𝑅))) → ((𝑧(.r𝑅)𝑦)(.r𝑅)𝑥) = (𝑧(.r𝑅)(𝑦(.r𝑅)𝑥)))
2318, 19, 20, 21, 22syl13anc 1251 . . 3 ((𝑅 ∈ Ring ∧ (𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅))) → ((𝑧(.r𝑅)𝑦)(.r𝑅)𝑥) = (𝑧(.r𝑅)(𝑦(.r𝑅)𝑥)))
242, 12, 1, 13opprmulg 13567 . . . . . 6 ((𝑅 ∈ Ring ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅)) → (𝑦(.r𝑂)𝑧) = (𝑧(.r𝑅)𝑦))
25243adant3r1 1214 . . . . 5 ((𝑅 ∈ Ring ∧ (𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅))) → (𝑦(.r𝑂)𝑧) = (𝑧(.r𝑅)𝑦))
2625oveq2d 5934 . . . 4 ((𝑅 ∈ Ring ∧ (𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅))) → (𝑥(.r𝑂)(𝑦(.r𝑂)𝑧)) = (𝑥(.r𝑂)(𝑧(.r𝑅)𝑦)))
272, 12ringcl 13509 . . . . . 6 ((𝑅 ∈ Ring ∧ 𝑧 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅)) → (𝑧(.r𝑅)𝑦) ∈ (Base‘𝑅))
2818, 19, 20, 27syl3anc 1249 . . . . 5 ((𝑅 ∈ Ring ∧ (𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅))) → (𝑧(.r𝑅)𝑦) ∈ (Base‘𝑅))
292, 12, 1, 13opprmulg 13567 . . . . 5 ((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅) ∧ (𝑧(.r𝑅)𝑦) ∈ (Base‘𝑅)) → (𝑥(.r𝑂)(𝑧(.r𝑅)𝑦)) = ((𝑧(.r𝑅)𝑦)(.r𝑅)𝑥))
3018, 21, 28, 29syl3anc 1249 . . . 4 ((𝑅 ∈ Ring ∧ (𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅))) → (𝑥(.r𝑂)(𝑧(.r𝑅)𝑦)) = ((𝑧(.r𝑅)𝑦)(.r𝑅)𝑥))
3126, 30eqtrd 2226 . . 3 ((𝑅 ∈ Ring ∧ (𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅))) → (𝑥(.r𝑂)(𝑦(.r𝑂)𝑧)) = ((𝑧(.r𝑅)𝑦)(.r𝑅)𝑥))
3214oveq1d 5933 . . . . 5 ((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅)) → ((𝑥(.r𝑂)𝑦)(.r𝑂)𝑧) = ((𝑦(.r𝑅)𝑥)(.r𝑂)𝑧))
33323adant3r3 1216 . . . 4 ((𝑅 ∈ Ring ∧ (𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅))) → ((𝑥(.r𝑂)𝑦)(.r𝑂)𝑧) = ((𝑦(.r𝑅)𝑥)(.r𝑂)𝑧))
34163adant3r3 1216 . . . . 5 ((𝑅 ∈ Ring ∧ (𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅))) → (𝑦(.r𝑅)𝑥) ∈ (Base‘𝑅))
352, 12, 1, 13opprmulg 13567 . . . . 5 ((𝑅 ∈ Ring ∧ (𝑦(.r𝑅)𝑥) ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅)) → ((𝑦(.r𝑅)𝑥)(.r𝑂)𝑧) = (𝑧(.r𝑅)(𝑦(.r𝑅)𝑥)))
3618, 34, 19, 35syl3anc 1249 . . . 4 ((𝑅 ∈ Ring ∧ (𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅))) → ((𝑦(.r𝑅)𝑥)(.r𝑂)𝑧) = (𝑧(.r𝑅)(𝑦(.r𝑅)𝑥)))
3733, 36eqtrd 2226 . . 3 ((𝑅 ∈ Ring ∧ (𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅))) → ((𝑥(.r𝑂)𝑦)(.r𝑂)𝑧) = (𝑧(.r𝑅)(𝑦(.r𝑅)𝑥)))
3823, 31, 373eqtr4rd 2237 . 2 ((𝑅 ∈ Ring ∧ (𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅))) → ((𝑥(.r𝑂)𝑦)(.r𝑂)𝑧) = (𝑥(.r𝑂)(𝑦(.r𝑂)𝑧)))
392, 4, 12ringdir 13515 . . . 4 ((𝑅 ∈ Ring ∧ (𝑦 ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅) ∧ 𝑥 ∈ (Base‘𝑅))) → ((𝑦(+g𝑅)𝑧)(.r𝑅)𝑥) = ((𝑦(.r𝑅)𝑥)(+g𝑅)(𝑧(.r𝑅)𝑥)))
4018, 20, 19, 21, 39syl13anc 1251 . . 3 ((𝑅 ∈ Ring ∧ (𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅))) → ((𝑦(+g𝑅)𝑧)(.r𝑅)𝑥) = ((𝑦(.r𝑅)𝑥)(+g𝑅)(𝑧(.r𝑅)𝑥)))
412, 4ringacl 13526 . . . . 5 ((𝑅 ∈ Ring ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅)) → (𝑦(+g𝑅)𝑧) ∈ (Base‘𝑅))
42413adant3r1 1214 . . . 4 ((𝑅 ∈ Ring ∧ (𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅))) → (𝑦(+g𝑅)𝑧) ∈ (Base‘𝑅))
432, 12, 1, 13opprmulg 13567 . . . 4 ((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅) ∧ (𝑦(+g𝑅)𝑧) ∈ (Base‘𝑅)) → (𝑥(.r𝑂)(𝑦(+g𝑅)𝑧)) = ((𝑦(+g𝑅)𝑧)(.r𝑅)𝑥))
4418, 21, 42, 43syl3anc 1249 . . 3 ((𝑅 ∈ Ring ∧ (𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅))) → (𝑥(.r𝑂)(𝑦(+g𝑅)𝑧)) = ((𝑦(+g𝑅)𝑧)(.r𝑅)𝑥))
45143adant3r3 1216 . . . 4 ((𝑅 ∈ Ring ∧ (𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅))) → (𝑥(.r𝑂)𝑦) = (𝑦(.r𝑅)𝑥))
462, 12, 1, 13opprmulg 13567 . . . . 5 ((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅)) → (𝑥(.r𝑂)𝑧) = (𝑧(.r𝑅)𝑥))
47463adant3r2 1215 . . . 4 ((𝑅 ∈ Ring ∧ (𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅))) → (𝑥(.r𝑂)𝑧) = (𝑧(.r𝑅)𝑥))
4845, 47oveq12d 5936 . . 3 ((𝑅 ∈ Ring ∧ (𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅))) → ((𝑥(.r𝑂)𝑦)(+g𝑅)(𝑥(.r𝑂)𝑧)) = ((𝑦(.r𝑅)𝑥)(+g𝑅)(𝑧(.r𝑅)𝑥)))
4940, 44, 483eqtr4d 2236 . 2 ((𝑅 ∈ Ring ∧ (𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅))) → (𝑥(.r𝑂)(𝑦(+g𝑅)𝑧)) = ((𝑥(.r𝑂)𝑦)(+g𝑅)(𝑥(.r𝑂)𝑧)))
502, 4, 12ringdi 13514 . . . 4 ((𝑅 ∈ Ring ∧ (𝑧 ∈ (Base‘𝑅) ∧ 𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅))) → (𝑧(.r𝑅)(𝑥(+g𝑅)𝑦)) = ((𝑧(.r𝑅)𝑥)(+g𝑅)(𝑧(.r𝑅)𝑦)))
5118, 19, 21, 20, 50syl13anc 1251 . . 3 ((𝑅 ∈ Ring ∧ (𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅))) → (𝑧(.r𝑅)(𝑥(+g𝑅)𝑦)) = ((𝑧(.r𝑅)𝑥)(+g𝑅)(𝑧(.r𝑅)𝑦)))
522, 4ringacl 13526 . . . . 5 ((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅)) → (𝑥(+g𝑅)𝑦) ∈ (Base‘𝑅))
53523adant3r3 1216 . . . 4 ((𝑅 ∈ Ring ∧ (𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅))) → (𝑥(+g𝑅)𝑦) ∈ (Base‘𝑅))
542, 12, 1, 13opprmulg 13567 . . . 4 ((𝑅 ∈ Ring ∧ (𝑥(+g𝑅)𝑦) ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅)) → ((𝑥(+g𝑅)𝑦)(.r𝑂)𝑧) = (𝑧(.r𝑅)(𝑥(+g𝑅)𝑦)))
5518, 53, 19, 54syl3anc 1249 . . 3 ((𝑅 ∈ Ring ∧ (𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅))) → ((𝑥(+g𝑅)𝑦)(.r𝑂)𝑧) = (𝑧(.r𝑅)(𝑥(+g𝑅)𝑦)))
5647, 25oveq12d 5936 . . 3 ((𝑅 ∈ Ring ∧ (𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅))) → ((𝑥(.r𝑂)𝑧)(+g𝑅)(𝑦(.r𝑂)𝑧)) = ((𝑧(.r𝑅)𝑥)(+g𝑅)(𝑧(.r𝑅)𝑦)))
5751, 55, 563eqtr4d 2236 . 2 ((𝑅 ∈ Ring ∧ (𝑥 ∈ (Base‘𝑅) ∧ 𝑦 ∈ (Base‘𝑅) ∧ 𝑧 ∈ (Base‘𝑅))) → ((𝑥(+g𝑅)𝑦)(.r𝑂)𝑧) = ((𝑥(.r𝑂)𝑧)(+g𝑅)(𝑦(.r𝑂)𝑧)))
58 eqid 2193 . . 3 (1r𝑅) = (1r𝑅)
592, 58ringidcl 13516 . 2 (𝑅 ∈ Ring → (1r𝑅) ∈ (Base‘𝑅))
60 simpl 109 . . . 4 ((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅)) → 𝑅 ∈ Ring)
6160, 59syl 14 . . . 4 ((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅)) → (1r𝑅) ∈ (Base‘𝑅))
62 simpr 110 . . . 4 ((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅)) → 𝑥 ∈ (Base‘𝑅))
632, 12, 1, 13opprmulg 13567 . . . 4 ((𝑅 ∈ Ring ∧ (1r𝑅) ∈ (Base‘𝑅) ∧ 𝑥 ∈ (Base‘𝑅)) → ((1r𝑅)(.r𝑂)𝑥) = (𝑥(.r𝑅)(1r𝑅)))
6460, 61, 62, 63syl3anc 1249 . . 3 ((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅)) → ((1r𝑅)(.r𝑂)𝑥) = (𝑥(.r𝑅)(1r𝑅)))
652, 12, 58ringridm 13520 . . 3 ((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅)) → (𝑥(.r𝑅)(1r𝑅)) = 𝑥)
6664, 65eqtrd 2226 . 2 ((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅)) → ((1r𝑅)(.r𝑂)𝑥) = 𝑥)
672, 12, 1, 13opprmulg 13567 . . . 4 ((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅) ∧ (1r𝑅) ∈ (Base‘𝑅)) → (𝑥(.r𝑂)(1r𝑅)) = ((1r𝑅)(.r𝑅)𝑥))
6860, 62, 61, 67syl3anc 1249 . . 3 ((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅)) → (𝑥(.r𝑂)(1r𝑅)) = ((1r𝑅)(.r𝑅)𝑥))
692, 12, 58ringlidm 13519 . . 3 ((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅)) → ((1r𝑅)(.r𝑅)𝑥) = 𝑥)
7068, 69eqtrd 2226 . 2 ((𝑅 ∈ Ring ∧ 𝑥 ∈ (Base‘𝑅)) → (𝑥(.r𝑂)(1r𝑅)) = 𝑥)
713, 5, 6, 11, 17, 38, 49, 57, 59, 66, 70isringd 13537 1 (𝑅 ∈ Ring → 𝑂 ∈ Ring)
Colors of variables: wff set class
Syntax hints:  wi 4  wa 104  w3a 980   = wceq 1364  wcel 2164  cfv 5254  (class class class)co 5918  Basecbs 12618  +gcplusg 12695  .rcmulr 12696  Grpcgrp 13072  1rcur 13455  Ringcrg 13492  opprcoppr 13563
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-in1 615  ax-in2 616  ax-io 710  ax-5 1458  ax-7 1459  ax-gen 1460  ax-ie1 1504  ax-ie2 1505  ax-8 1515  ax-10 1516  ax-11 1517  ax-i12 1518  ax-bndl 1520  ax-4 1521  ax-17 1537  ax-i9 1541  ax-ial 1545  ax-i5r 1546  ax-13 2166  ax-14 2167  ax-ext 2175  ax-sep 4147  ax-nul 4155  ax-pow 4203  ax-pr 4238  ax-un 4464  ax-setind 4569  ax-cnex 7963  ax-resscn 7964  ax-1cn 7965  ax-1re 7966  ax-icn 7967  ax-addcl 7968  ax-addrcl 7969  ax-mulcl 7970  ax-addcom 7972  ax-addass 7974  ax-i2m1 7977  ax-0lt1 7978  ax-0id 7980  ax-rnegex 7981  ax-pre-ltirr 7984  ax-pre-lttrn 7986  ax-pre-ltadd 7988
This theorem depends on definitions:  df-bi 117  df-3an 982  df-tru 1367  df-fal 1370  df-nf 1472  df-sb 1774  df-eu 2045  df-mo 2046  df-clab 2180  df-cleq 2186  df-clel 2189  df-nfc 2325  df-ne 2365  df-nel 2460  df-ral 2477  df-rex 2478  df-reu 2479  df-rmo 2480  df-rab 2481  df-v 2762  df-sbc 2986  df-csb 3081  df-dif 3155  df-un 3157  df-in 3159  df-ss 3166  df-nul 3447  df-pw 3603  df-sn 3624  df-pr 3625  df-op 3627  df-uni 3836  df-int 3871  df-br 4030  df-opab 4091  df-mpt 4092  df-id 4324  df-xp 4665  df-rel 4666  df-cnv 4667  df-co 4668  df-dm 4669  df-rn 4670  df-res 4671  df-ima 4672  df-iota 5215  df-fun 5256  df-fn 5257  df-fv 5262  df-riota 5873  df-ov 5921  df-oprab 5922  df-mpo 5923  df-tpos 6298  df-pnf 8056  df-mnf 8057  df-ltxr 8059  df-inn 8983  df-2 9041  df-3 9042  df-ndx 12621  df-slot 12622  df-base 12624  df-sets 12625  df-plusg 12708  df-mulr 12709  df-0g 12869  df-mgm 12939  df-sgrp 12985  df-mnd 12998  df-grp 13075  df-mgp 13417  df-ur 13456  df-ring 13494  df-oppr 13564
This theorem is referenced by:  opprringbg  13576  mulgass3  13581  1unit  13603  opprunitd  13606  crngunit  13607  unitmulcl  13609  unitgrp  13612  unitnegcl  13626  unitpropdg  13644  subrguss  13732  subrgunit  13735  isridl  14000  ridl0  14006  ridl1  14007
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