Theorem resmgmhm2 44073

Description: One direction of resmgmhm2b 44074. (Contributed by AV, 26-Feb-2020.)

Hypothesis

Ref	Expression
resmgmhm2.u	⊢ 𝑈 = (𝑇 ↾s 𝑋)

Assertion

Ref	Expression
resmgmhm2	⊢ ((𝐹 ∈ (𝑆 MgmHom 𝑈) ∧ 𝑋 ∈ (SubMgm‘𝑇)) → 𝐹 ∈ (𝑆 MgmHom 𝑇))

Proof of Theorem resmgmhm2

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

Step	Hyp	Ref	Expression
1		mgmhmrcl 44055	. . . 4 ⊢ (𝐹 ∈ (𝑆 MgmHom 𝑈) → (𝑆 ∈ Mgm ∧ 𝑈 ∈ Mgm))
2	1	simpld 497	. . 3 ⊢ (𝐹 ∈ (𝑆 MgmHom 𝑈) → 𝑆 ∈ Mgm)
3		submgmrcl 44056	. . 3 ⊢ (𝑋 ∈ (SubMgm‘𝑇) → 𝑇 ∈ Mgm)
4	2, 3	anim12i 614	. 2 ⊢ ((𝐹 ∈ (𝑆 MgmHom 𝑈) ∧ 𝑋 ∈ (SubMgm‘𝑇)) → (𝑆 ∈ Mgm ∧ 𝑇 ∈ Mgm))
5		eqid 2824	. . . . 5 ⊢ (Base‘𝑆) = (Base‘𝑆)
6		eqid 2824	. . . . 5 ⊢ (Base‘𝑈) = (Base‘𝑈)
7	5, 6	mgmhmf 44058	. . . 4 ⊢ (𝐹 ∈ (𝑆 MgmHom 𝑈) → 𝐹:(Base‘𝑆)⟶(Base‘𝑈))
8		resmgmhm2.u	. . . . . 6 ⊢ 𝑈 = (𝑇 ↾s 𝑋)
9	8	submgmbas 44070	. . . . 5 ⊢ (𝑋 ∈ (SubMgm‘𝑇) → 𝑋 = (Base‘𝑈))
10		eqid 2824	. . . . . 6 ⊢ (Base‘𝑇) = (Base‘𝑇)
11	10	submgmss 44066	. . . . 5 ⊢ (𝑋 ∈ (SubMgm‘𝑇) → 𝑋 ⊆ (Base‘𝑇))
12	9, 11	eqsstrrd 4009	. . . 4 ⊢ (𝑋 ∈ (SubMgm‘𝑇) → (Base‘𝑈) ⊆ (Base‘𝑇))
13		fss 6530	. . . 4 ⊢ ((𝐹:(Base‘𝑆)⟶(Base‘𝑈) ∧ (Base‘𝑈) ⊆ (Base‘𝑇)) → 𝐹:(Base‘𝑆)⟶(Base‘𝑇))
14	7, 12, 13	syl2an 597	. . 3 ⊢ ((𝐹 ∈ (𝑆 MgmHom 𝑈) ∧ 𝑋 ∈ (SubMgm‘𝑇)) → 𝐹:(Base‘𝑆)⟶(Base‘𝑇))
15		eqid 2824	. . . . . . . 8 ⊢ (+g‘𝑆) = (+g‘𝑆)
16		eqid 2824	. . . . . . . 8 ⊢ (+g‘𝑈) = (+g‘𝑈)
17	5, 15, 16	mgmhmlin 44060	. . . . . . 7 ⊢ ((𝐹 ∈ (𝑆 MgmHom 𝑈) ∧ 𝑥 ∈ (Base‘𝑆) ∧ 𝑦 ∈ (Base‘𝑆)) → (𝐹‘(𝑥(+g‘𝑆)𝑦)) = ((𝐹‘𝑥)(+g‘𝑈)(𝐹‘𝑦)))
18	17	3expb 1116	. . . . . 6 ⊢ ((𝐹 ∈ (𝑆 MgmHom 𝑈) ∧ (𝑥 ∈ (Base‘𝑆) ∧ 𝑦 ∈ (Base‘𝑆))) → (𝐹‘(𝑥(+g‘𝑆)𝑦)) = ((𝐹‘𝑥)(+g‘𝑈)(𝐹‘𝑦)))
19	18	adantlr 713	. . . . 5 ⊢ (((𝐹 ∈ (𝑆 MgmHom 𝑈) ∧ 𝑋 ∈ (SubMgm‘𝑇)) ∧ (𝑥 ∈ (Base‘𝑆) ∧ 𝑦 ∈ (Base‘𝑆))) → (𝐹‘(𝑥(+g‘𝑆)𝑦)) = ((𝐹‘𝑥)(+g‘𝑈)(𝐹‘𝑦)))
20		eqid 2824	. . . . . . . 8 ⊢ (+g‘𝑇) = (+g‘𝑇)
21	8, 20	ressplusg 16615	. . . . . . 7 ⊢ (𝑋 ∈ (SubMgm‘𝑇) → (+g‘𝑇) = (+g‘𝑈))
22	21	ad2antlr 725	. . . . . 6 ⊢ (((𝐹 ∈ (𝑆 MgmHom 𝑈) ∧ 𝑋 ∈ (SubMgm‘𝑇)) ∧ (𝑥 ∈ (Base‘𝑆) ∧ 𝑦 ∈ (Base‘𝑆))) → (+g‘𝑇) = (+g‘𝑈))
23	22	oveqd 7176	. . . . 5 ⊢ (((𝐹 ∈ (𝑆 MgmHom 𝑈) ∧ 𝑋 ∈ (SubMgm‘𝑇)) ∧ (𝑥 ∈ (Base‘𝑆) ∧ 𝑦 ∈ (Base‘𝑆))) → ((𝐹‘𝑥)(+g‘𝑇)(𝐹‘𝑦)) = ((𝐹‘𝑥)(+g‘𝑈)(𝐹‘𝑦)))
24	19, 23	eqtr4d 2862	. . . 4 ⊢ (((𝐹 ∈ (𝑆 MgmHom 𝑈) ∧ 𝑋 ∈ (SubMgm‘𝑇)) ∧ (𝑥 ∈ (Base‘𝑆) ∧ 𝑦 ∈ (Base‘𝑆))) → (𝐹‘(𝑥(+g‘𝑆)𝑦)) = ((𝐹‘𝑥)(+g‘𝑇)(𝐹‘𝑦)))
25	24	ralrimivva 3194	. . 3 ⊢ ((𝐹 ∈ (𝑆 MgmHom 𝑈) ∧ 𝑋 ∈ (SubMgm‘𝑇)) → ∀𝑥 ∈ (Base‘𝑆)∀𝑦 ∈ (Base‘𝑆)(𝐹‘(𝑥(+g‘𝑆)𝑦)) = ((𝐹‘𝑥)(+g‘𝑇)(𝐹‘𝑦)))
26	14, 25	jca 514	. 2 ⊢ ((𝐹 ∈ (𝑆 MgmHom 𝑈) ∧ 𝑋 ∈ (SubMgm‘𝑇)) → (𝐹:(Base‘𝑆)⟶(Base‘𝑇) ∧ ∀𝑥 ∈ (Base‘𝑆)∀𝑦 ∈ (Base‘𝑆)(𝐹‘(𝑥(+g‘𝑆)𝑦)) = ((𝐹‘𝑥)(+g‘𝑇)(𝐹‘𝑦))))
27	5, 10, 15, 20	ismgmhm 44057	. 2 ⊢ (𝐹 ∈ (𝑆 MgmHom 𝑇) ↔ ((𝑆 ∈ Mgm ∧ 𝑇 ∈ Mgm) ∧ (𝐹:(Base‘𝑆)⟶(Base‘𝑇) ∧ ∀𝑥 ∈ (Base‘𝑆)∀𝑦 ∈ (Base‘𝑆)(𝐹‘(𝑥(+g‘𝑆)𝑦)) = ((𝐹‘𝑥)(+g‘𝑇)(𝐹‘𝑦)))))
28	4, 26, 27	sylanbrc 585	1 ⊢ ((𝐹 ∈ (𝑆 MgmHom 𝑈) ∧ 𝑋 ∈ (SubMgm‘𝑇)) → 𝐹 ∈ (𝑆 MgmHom 𝑇))

Syntax hints:   → wi 4   ∧ wa 398   = wceq 1536   ∈ wcel 2113  ∀wral 3141   ⊆ wss 3939  ⟶wf 6354  ‘cfv 6358  (class class class)co 7159  Basecbs 16486   ↾_s cress 16487  +_gcplusg 16568  Mgmcmgm 17853   MgmHom cmgmhm 44051  SubMgmcsubmgm 44052

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1795  ax-4 1809  ax-5 1910  ax-6 1969  ax-7 2014  ax-8 2115  ax-9 2123  ax-10 2144  ax-11 2160  ax-12 2176  ax-ext 2796  ax-sep 5206  ax-nul 5213  ax-pow 5269  ax-pr 5333  ax-un 7464  ax-cnex 10596  ax-resscn 10597  ax-1cn 10598  ax-icn 10599  ax-addcl 10600  ax-addrcl 10601  ax-mulcl 10602  ax-mulrcl 10603  ax-mulcom 10604  ax-addass 10605  ax-mulass 10606  ax-distr 10607  ax-i2m1 10608  ax-1ne0 10609  ax-1rid 10610  ax-rnegex 10611  ax-rrecex 10612  ax-cnre 10613  ax-pre-lttri 10614  ax-pre-lttrn 10615  ax-pre-ltadd 10616  ax-pre-mulgt0 10617

This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-3or 1084  df-3an 1085  df-tru 1539  df-ex 1780  df-nf 1784  df-sb 2069  df-mo 2621  df-eu 2653  df-clab 2803  df-cleq 2817  df-clel 2896  df-nfc 2966  df-ne 3020  df-nel 3127  df-ral 3146  df-rex 3147  df-reu 3148  df-rab 3150  df-v 3499  df-sbc 3776  df-csb 3887  df-dif 3942  df-un 3944  df-in 3946  df-ss 3955  df-pss 3957  df-nul 4295  df-if 4471  df-pw 4544  df-sn 4571  df-pr 4573  df-tp 4575  df-op 4577  df-uni 4842  df-iun 4924  df-br 5070  df-opab 5132  df-mpt 5150  df-tr 5176  df-id 5463  df-eprel 5468  df-po 5477  df-so 5478  df-fr 5517  df-we 5519  df-xp 5564  df-rel 5565  df-cnv 5566  df-co 5567  df-dm 5568  df-rn 5569  df-res 5570  df-ima 5571  df-pred 6151  df-ord 6197  df-on 6198  df-lim 6199  df-suc 6200  df-iota 6317  df-fun 6360  df-fn 6361  df-f 6362  df-f1 6363  df-fo 6364  df-f1o 6365  df-fv 6366  df-riota 7117  df-ov 7162  df-oprab 7163  df-mpo 7164  df-om 7584  df-wrecs 7950  df-recs 8011  df-rdg 8049  df-er 8292  df-map 8411  df-en 8513  df-dom 8514  df-sdom 8515  df-pnf 10680  df-mnf 10681  df-xr 10682  df-ltxr 10683  df-le 10684  df-sub 10875  df-neg 10876  df-nn 11642  df-2 11703  df-ndx 16489  df-slot 16490  df-base 16492  df-sets 16493  df-ress 16494  df-plusg 16581  df-mgm 17855  df-mgmhm 44053  df-submgm 44054

This theorem is referenced by:  resmgmhm2b  44074