Theorem cntzmhm2 19382

Description: Centralizers in a monoid are preserved by monoid homomorphisms. (Contributed by Mario Carneiro, 24-Apr-2016.)

Hypotheses

Ref	Expression
cntzmhm.z	⊢ 𝑍 = (Cntz‘𝐺)
cntzmhm.y	⊢ 𝑌 = (Cntz‘𝐻)

Assertion

Ref	Expression
cntzmhm2	⊢ ((𝐹 ∈ (𝐺 MndHom 𝐻) ∧ 𝑆 ⊆ (𝑍‘𝑇)) → (𝐹 “ 𝑆) ⊆ (𝑌‘(𝐹 “ 𝑇)))

Proof of Theorem cntzmhm2

Dummy variable 𝑥 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		cntzmhm.z	. . . . 5 ⊢ 𝑍 = (Cntz‘𝐺)
2		cntzmhm.y	. . . . 5 ⊢ 𝑌 = (Cntz‘𝐻)
3	1, 2	cntzmhm 19381	. . . 4 ⊢ ((𝐹 ∈ (𝐺 MndHom 𝐻) ∧ 𝑥 ∈ (𝑍‘𝑇)) → (𝐹‘𝑥) ∈ (𝑌‘(𝐹 “ 𝑇)))
4	3	ralrimiva 3146	. . 3 ⊢ (𝐹 ∈ (𝐺 MndHom 𝐻) → ∀𝑥 ∈ (𝑍‘𝑇)(𝐹‘𝑥) ∈ (𝑌‘(𝐹 “ 𝑇)))
5		ssralv 4067	. . 3 ⊢ (𝑆 ⊆ (𝑍‘𝑇) → (∀𝑥 ∈ (𝑍‘𝑇)(𝐹‘𝑥) ∈ (𝑌‘(𝐹 “ 𝑇)) → ∀𝑥 ∈ 𝑆 (𝐹‘𝑥) ∈ (𝑌‘(𝐹 “ 𝑇))))
6	4, 5	mpan9 506	. 2 ⊢ ((𝐹 ∈ (𝐺 MndHom 𝐻) ∧ 𝑆 ⊆ (𝑍‘𝑇)) → ∀𝑥 ∈ 𝑆 (𝐹‘𝑥) ∈ (𝑌‘(𝐹 “ 𝑇)))
7		eqid 2737	. . . . . 6 ⊢ (Base‘𝐺) = (Base‘𝐺)
8		eqid 2737	. . . . . 6 ⊢ (Base‘𝐻) = (Base‘𝐻)
9	7, 8	mhmf 18824	. . . . 5 ⊢ (𝐹 ∈ (𝐺 MndHom 𝐻) → 𝐹:(Base‘𝐺)⟶(Base‘𝐻))
10	9	adantr 480	. . . 4 ⊢ ((𝐹 ∈ (𝐺 MndHom 𝐻) ∧ 𝑆 ⊆ (𝑍‘𝑇)) → 𝐹:(Base‘𝐺)⟶(Base‘𝐻))
11	10	ffund 6748	. . 3 ⊢ ((𝐹 ∈ (𝐺 MndHom 𝐻) ∧ 𝑆 ⊆ (𝑍‘𝑇)) → Fun 𝐹)
12		simpr 484	. . . . 5 ⊢ ((𝐹 ∈ (𝐺 MndHom 𝐻) ∧ 𝑆 ⊆ (𝑍‘𝑇)) → 𝑆 ⊆ (𝑍‘𝑇))
13	7, 1	cntzssv 19368	. . . . 5 ⊢ (𝑍‘𝑇) ⊆ (Base‘𝐺)
14	12, 13	sstrdi 4011	. . . 4 ⊢ ((𝐹 ∈ (𝐺 MndHom 𝐻) ∧ 𝑆 ⊆ (𝑍‘𝑇)) → 𝑆 ⊆ (Base‘𝐺))
15	10	fdmd 6754	. . . 4 ⊢ ((𝐹 ∈ (𝐺 MndHom 𝐻) ∧ 𝑆 ⊆ (𝑍‘𝑇)) → dom 𝐹 = (Base‘𝐺))
16	14, 15	sseqtrrd 4040	. . 3 ⊢ ((𝐹 ∈ (𝐺 MndHom 𝐻) ∧ 𝑆 ⊆ (𝑍‘𝑇)) → 𝑆 ⊆ dom 𝐹)
17		funimass4 6980	. . 3 ⊢ ((Fun 𝐹 ∧ 𝑆 ⊆ dom 𝐹) → ((𝐹 “ 𝑆) ⊆ (𝑌‘(𝐹 “ 𝑇)) ↔ ∀𝑥 ∈ 𝑆 (𝐹‘𝑥) ∈ (𝑌‘(𝐹 “ 𝑇))))
18	11, 16, 17	syl2anc 584	. 2 ⊢ ((𝐹 ∈ (𝐺 MndHom 𝐻) ∧ 𝑆 ⊆ (𝑍‘𝑇)) → ((𝐹 “ 𝑆) ⊆ (𝑌‘(𝐹 “ 𝑇)) ↔ ∀𝑥 ∈ 𝑆 (𝐹‘𝑥) ∈ (𝑌‘(𝐹 “ 𝑇))))
19	6, 18	mpbird 257	1 ⊢ ((𝐹 ∈ (𝐺 MndHom 𝐻) ∧ 𝑆 ⊆ (𝑍‘𝑇)) → (𝐹 “ 𝑆) ⊆ (𝑌‘(𝐹 “ 𝑇)))

Syntax hints:   → wi 4   ↔ wb 206   ∧ wa 395   = wceq 1539   ∈ wcel 2108  ∀wral 3061   ⊆ wss 3966  dom cdm 5693   “ cima 5696  Fun wfun 6563  ⟶wf 6565  ‘cfv 6569  (class class class)co 7438  Basecbs 17254   MndHom cmhm 18816  Cntzccntz 19355

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1794  ax-4 1808  ax-5 1910  ax-6 1967  ax-7 2007  ax-8 2110  ax-9 2118  ax-10 2141  ax-11 2157  ax-12 2177  ax-ext 2708  ax-rep 5288  ax-sep 5305  ax-nul 5315  ax-pow 5374  ax-pr 5441  ax-un 7761

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3an 1089  df-tru 1542  df-fal 1552  df-ex 1779  df-nf 1783  df-sb 2065  df-mo 2540  df-eu 2569  df-clab 2715  df-cleq 2729  df-clel 2816  df-nfc 2892  df-ne 2941  df-ral 3062  df-rex 3071  df-reu 3381  df-rab 3437  df-v 3483  df-sbc 3795  df-csb 3912  df-dif 3969  df-un 3971  df-in 3973  df-ss 3983  df-nul 4343  df-if 4535  df-pw 4610  df-sn 4635  df-pr 4637  df-op 4641  df-uni 4916  df-iun 5001  df-br 5152  df-opab 5214  df-mpt 5235  df-id 5587  df-xp 5699  df-rel 5700  df-cnv 5701  df-co 5702  df-dm 5703  df-rn 5704  df-res 5705  df-ima 5706  df-iota 6522  df-fun 6571  df-fn 6572  df-f 6573  df-f1 6574  df-fo 6575  df-f1o 6576  df-fv 6577  df-ov 7441  df-oprab 7442  df-mpo 7443  df-map 8876  df-mhm 18818  df-cntz 19357

This theorem is referenced by:  gsumzmhm  19979  gsumzinv  19987