Theorem cntzssv 18457

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	⊢ (𝑍‘𝑆) ⊆ 𝐵

Proof of Theorem cntzssv

Dummy variables 𝑥 𝑦 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		0ss 4349	. . 3 ⊢ ∅ ⊆ 𝐵
2		sseq1 3991	. . 3 ⊢ ((𝑍‘𝑆) = ∅ → ((𝑍‘𝑆) ⊆ 𝐵 ↔ ∅ ⊆ 𝐵))
3	1, 2	mpbiri 260	. 2 ⊢ ((𝑍‘𝑆) = ∅ → (𝑍‘𝑆) ⊆ 𝐵)
4		n0 4309	. . 3 ⊢ ((𝑍‘𝑆) ≠ ∅ ↔ ∃𝑥 𝑥 ∈ (𝑍‘𝑆))
5		cntzrcl.b	. . . . . . 7 ⊢ 𝐵 = (Base‘𝑀)
6		cntzrcl.z	. . . . . . 7 ⊢ 𝑍 = (Cntz‘𝑀)
7	5, 6	cntzrcl 18456	. . . . . 6 ⊢ (𝑥 ∈ (𝑍‘𝑆) → (𝑀 ∈ V ∧ 𝑆 ⊆ 𝐵))
8		eqid 2821	. . . . . . 7 ⊢ (+g‘𝑀) = (+g‘𝑀)
9	5, 8, 6	cntzval 18450	. . . . . 6 ⊢ (𝑆 ⊆ 𝐵 → (𝑍‘𝑆) = {𝑥 ∈ 𝐵 ∣ ∀𝑦 ∈ 𝑆 (𝑥(+g‘𝑀)𝑦) = (𝑦(+g‘𝑀)𝑥)})
10	7, 9	simpl2im 506	. . . . 5 ⊢ (𝑥 ∈ (𝑍‘𝑆) → (𝑍‘𝑆) = {𝑥 ∈ 𝐵 ∣ ∀𝑦 ∈ 𝑆 (𝑥(+g‘𝑀)𝑦) = (𝑦(+g‘𝑀)𝑥)})
11		ssrab2 4055	. . . . 5 ⊢ {𝑥 ∈ 𝐵 ∣ ∀𝑦 ∈ 𝑆 (𝑥(+g‘𝑀)𝑦) = (𝑦(+g‘𝑀)𝑥)} ⊆ 𝐵
12	10, 11	eqsstrdi 4020	. . . 4 ⊢ (𝑥 ∈ (𝑍‘𝑆) → (𝑍‘𝑆) ⊆ 𝐵)
13	12	exlimiv 1927	. . 3 ⊢ (∃𝑥 𝑥 ∈ (𝑍‘𝑆) → (𝑍‘𝑆) ⊆ 𝐵)
14	4, 13	sylbi 219	. 2 ⊢ ((𝑍‘𝑆) ≠ ∅ → (𝑍‘𝑆) ⊆ 𝐵)
15	3, 14	pm2.61ine 3100	1 ⊢ (𝑍‘𝑆) ⊆ 𝐵

Syntax hints:   = wceq 1533  ∃wex 1776   ∈ wcel 2110   ≠ wne 3016  ∀wral 3138  {crab 3142  Vcvv 3494   ⊆ wss 3935  ∅c0 4290  ‘cfv 6354  (class class class)co 7155  Basecbs 16482  +_gcplusg 16564  Cntzccntz 18444

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1792  ax-4 1806  ax-5 1907  ax-6 1966  ax-7 2011  ax-8 2112  ax-9 2120  ax-10 2141  ax-11 2157  ax-12 2173  ax-ext 2793  ax-rep 5189  ax-sep 5202  ax-nul 5209  ax-pow 5265  ax-pr 5329

This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-3an 1085  df-tru 1536  df-ex 1777  df-nf 1781  df-sb 2066  df-mo 2618  df-eu 2650  df-clab 2800  df-cleq 2814  df-clel 2893  df-nfc 2963  df-ne 3017  df-ral 3143  df-rex 3144  df-reu 3145  df-rab 3147  df-v 3496  df-sbc 3772  df-csb 3883  df-dif 3938  df-un 3940  df-in 3942  df-ss 3951  df-nul 4291  df-if 4467  df-pw 4540  df-sn 4567  df-pr 4569  df-op 4573  df-uni 4838  df-iun 4920  df-br 5066  df-opab 5128  df-mpt 5146  df-id 5459  df-xp 5560  df-rel 5561  df-cnv 5562  df-co 5563  df-dm 5564  df-rn 5565  df-res 5566  df-ima 5567  df-iota 6313  df-fun 6356  df-fn 6357  df-f 6358  df-f1 6359  df-fo 6360  df-f1o 6361  df-fv 6362  df-ov 7158  df-cntz 18446

This theorem is referenced by:  cntrss  18459  cntz2ss  18462  cntzsubm  18465  cntzsubg  18466  cntzidss  18467  cntzmhm  18468  cntzmhm2  18469  cntzcmn  18959  cntzspan  18963  cntzsubr  19567  cntzsdrg  19580