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Theorem cntzssv 18849
Description: The centralizer is unconditionally a subset. (Contributed by Stefan O'Rear, 6-Sep-2015.)
Hypotheses
Ref Expression
cntzrcl.b 𝐵 = (Base‘𝑀)
cntzrcl.z 𝑍 = (Cntz‘𝑀)
Assertion
Ref Expression
cntzssv (𝑍𝑆) ⊆ 𝐵

Proof of Theorem cntzssv
Dummy variables 𝑥 𝑦 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 0ss 4327 . . 3 ∅ ⊆ 𝐵
2 sseq1 3942 . . 3 ((𝑍𝑆) = ∅ → ((𝑍𝑆) ⊆ 𝐵 ↔ ∅ ⊆ 𝐵))
31, 2mpbiri 257 . 2 ((𝑍𝑆) = ∅ → (𝑍𝑆) ⊆ 𝐵)
4 n0 4277 . . 3 ((𝑍𝑆) ≠ ∅ ↔ ∃𝑥 𝑥 ∈ (𝑍𝑆))
5 cntzrcl.b . . . . . . 7 𝐵 = (Base‘𝑀)
6 cntzrcl.z . . . . . . 7 𝑍 = (Cntz‘𝑀)
75, 6cntzrcl 18848 . . . . . 6 (𝑥 ∈ (𝑍𝑆) → (𝑀 ∈ V ∧ 𝑆𝐵))
8 eqid 2738 . . . . . . 7 (+g𝑀) = (+g𝑀)
95, 8, 6cntzval 18842 . . . . . 6 (𝑆𝐵 → (𝑍𝑆) = {𝑥𝐵 ∣ ∀𝑦𝑆 (𝑥(+g𝑀)𝑦) = (𝑦(+g𝑀)𝑥)})
107, 9simpl2im 503 . . . . 5 (𝑥 ∈ (𝑍𝑆) → (𝑍𝑆) = {𝑥𝐵 ∣ ∀𝑦𝑆 (𝑥(+g𝑀)𝑦) = (𝑦(+g𝑀)𝑥)})
11 ssrab2 4009 . . . . 5 {𝑥𝐵 ∣ ∀𝑦𝑆 (𝑥(+g𝑀)𝑦) = (𝑦(+g𝑀)𝑥)} ⊆ 𝐵
1210, 11eqsstrdi 3971 . . . 4 (𝑥 ∈ (𝑍𝑆) → (𝑍𝑆) ⊆ 𝐵)
1312exlimiv 1934 . . 3 (∃𝑥 𝑥 ∈ (𝑍𝑆) → (𝑍𝑆) ⊆ 𝐵)
144, 13sylbi 216 . 2 ((𝑍𝑆) ≠ ∅ → (𝑍𝑆) ⊆ 𝐵)
153, 14pm2.61ine 3027 1 (𝑍𝑆) ⊆ 𝐵
Colors of variables: wff setvar class
Syntax hints:   = wceq 1539  wex 1783  wcel 2108  wne 2942  wral 3063  {crab 3067  Vcvv 3422  wss 3883  c0 4253  cfv 6418  (class class class)co 7255  Basecbs 16840  +gcplusg 16888  Cntzccntz 18836
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1799  ax-4 1813  ax-5 1914  ax-6 1972  ax-7 2012  ax-8 2110  ax-9 2118  ax-10 2139  ax-11 2156  ax-12 2173  ax-ext 2709  ax-rep 5205  ax-sep 5218  ax-nul 5225  ax-pow 5283  ax-pr 5347
This theorem depends on definitions:  df-bi 206  df-an 396  df-or 844  df-3an 1087  df-tru 1542  df-fal 1552  df-ex 1784  df-nf 1788  df-sb 2069  df-mo 2540  df-eu 2569  df-clab 2716  df-cleq 2730  df-clel 2817  df-nfc 2888  df-ne 2943  df-ral 3068  df-rex 3069  df-reu 3070  df-rab 3072  df-v 3424  df-sbc 3712  df-csb 3829  df-dif 3886  df-un 3888  df-in 3890  df-ss 3900  df-nul 4254  df-if 4457  df-pw 4532  df-sn 4559  df-pr 4561  df-op 4565  df-uni 4837  df-iun 4923  df-br 5071  df-opab 5133  df-mpt 5154  df-id 5480  df-xp 5586  df-rel 5587  df-cnv 5588  df-co 5589  df-dm 5590  df-rn 5591  df-res 5592  df-ima 5593  df-iota 6376  df-fun 6420  df-fn 6421  df-f 6422  df-f1 6423  df-fo 6424  df-f1o 6425  df-fv 6426  df-ov 7258  df-cntz 18838
This theorem is referenced by:  cntrss  18851  cntz2ss  18854  cntzsubm  18857  cntzsubg  18858  cntzidss  18859  cntzmhm  18860  cntzmhm2  18861  cntzcmn  19356  cntzspan  19360  cntzsubr  19972  cntzsdrg  19985
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