Theorem subsubm 18732

Description: A submonoid of a submonoid is a submonoid. (Contributed by Mario Carneiro, 21-Jun-2015.)

Hypothesis

Ref	Expression
subsubm.h	⊢ 𝐻 = (𝐺 ↾s 𝑆)

Assertion

Ref	Expression
subsubm	⊢ (𝑆 ∈ (SubMnd‘𝐺) → (𝐴 ∈ (SubMnd‘𝐻) ↔ (𝐴 ∈ (SubMnd‘𝐺) ∧ 𝐴 ⊆ 𝑆)))

Proof of Theorem subsubm

Step	Hyp	Ref	Expression
1		eqid 2733	. . . . . . . 8 ⊢ (Base‘𝐻) = (Base‘𝐻)
2	1	submss 18725	. . . . . . 7 ⊢ (𝐴 ∈ (SubMnd‘𝐻) → 𝐴 ⊆ (Base‘𝐻))
3	2	adantl 481	. . . . . 6 ⊢ ((𝑆 ∈ (SubMnd‘𝐺) ∧ 𝐴 ∈ (SubMnd‘𝐻)) → 𝐴 ⊆ (Base‘𝐻))
4		subsubm.h	. . . . . . . 8 ⊢ 𝐻 = (𝐺 ↾s 𝑆)
5	4	submbas 18730	. . . . . . 7 ⊢ (𝑆 ∈ (SubMnd‘𝐺) → 𝑆 = (Base‘𝐻))
6	5	adantr 480	. . . . . 6 ⊢ ((𝑆 ∈ (SubMnd‘𝐺) ∧ 𝐴 ∈ (SubMnd‘𝐻)) → 𝑆 = (Base‘𝐻))
7	3, 6	sseqtrrd 3968	. . . . 5 ⊢ ((𝑆 ∈ (SubMnd‘𝐺) ∧ 𝐴 ∈ (SubMnd‘𝐻)) → 𝐴 ⊆ 𝑆)
8		eqid 2733	. . . . . . 7 ⊢ (Base‘𝐺) = (Base‘𝐺)
9	8	submss 18725	. . . . . 6 ⊢ (𝑆 ∈ (SubMnd‘𝐺) → 𝑆 ⊆ (Base‘𝐺))
10	9	adantr 480	. . . . 5 ⊢ ((𝑆 ∈ (SubMnd‘𝐺) ∧ 𝐴 ∈ (SubMnd‘𝐻)) → 𝑆 ⊆ (Base‘𝐺))
11	7, 10	sstrd 3941	. . . 4 ⊢ ((𝑆 ∈ (SubMnd‘𝐺) ∧ 𝐴 ∈ (SubMnd‘𝐻)) → 𝐴 ⊆ (Base‘𝐺))
12		eqid 2733	. . . . . . 7 ⊢ (0g‘𝐺) = (0g‘𝐺)
13	4, 12	subm0 18731	. . . . . 6 ⊢ (𝑆 ∈ (SubMnd‘𝐺) → (0g‘𝐺) = (0g‘𝐻))
14	13	adantr 480	. . . . 5 ⊢ ((𝑆 ∈ (SubMnd‘𝐺) ∧ 𝐴 ∈ (SubMnd‘𝐻)) → (0g‘𝐺) = (0g‘𝐻))
15		eqid 2733	. . . . . . 7 ⊢ (0g‘𝐻) = (0g‘𝐻)
16	15	subm0cl 18727	. . . . . 6 ⊢ (𝐴 ∈ (SubMnd‘𝐻) → (0g‘𝐻) ∈ 𝐴)
17	16	adantl 481	. . . . 5 ⊢ ((𝑆 ∈ (SubMnd‘𝐺) ∧ 𝐴 ∈ (SubMnd‘𝐻)) → (0g‘𝐻) ∈ 𝐴)
18	14, 17	eqeltrd 2833	. . . 4 ⊢ ((𝑆 ∈ (SubMnd‘𝐺) ∧ 𝐴 ∈ (SubMnd‘𝐻)) → (0g‘𝐺) ∈ 𝐴)
19	4	oveq1i 7365	. . . . . . 7 ⊢ (𝐻 ↾s 𝐴) = ((𝐺 ↾s 𝑆) ↾s 𝐴)
20		ressabs 17166	. . . . . . 7 ⊢ ((𝑆 ∈ (SubMnd‘𝐺) ∧ 𝐴 ⊆ 𝑆) → ((𝐺 ↾s 𝑆) ↾s 𝐴) = (𝐺 ↾s 𝐴))
21	19, 20	eqtrid 2780	. . . . . 6 ⊢ ((𝑆 ∈ (SubMnd‘𝐺) ∧ 𝐴 ⊆ 𝑆) → (𝐻 ↾s 𝐴) = (𝐺 ↾s 𝐴))
22	7, 21	syldan 591	. . . . 5 ⊢ ((𝑆 ∈ (SubMnd‘𝐺) ∧ 𝐴 ∈ (SubMnd‘𝐻)) → (𝐻 ↾s 𝐴) = (𝐺 ↾s 𝐴))
23		eqid 2733	. . . . . . 7 ⊢ (𝐻 ↾s 𝐴) = (𝐻 ↾s 𝐴)
24	23	submmnd 18729	. . . . . 6 ⊢ (𝐴 ∈ (SubMnd‘𝐻) → (𝐻 ↾s 𝐴) ∈ Mnd)
25	24	adantl 481	. . . . 5 ⊢ ((𝑆 ∈ (SubMnd‘𝐺) ∧ 𝐴 ∈ (SubMnd‘𝐻)) → (𝐻 ↾s 𝐴) ∈ Mnd)
26	22, 25	eqeltrrd 2834	. . . 4 ⊢ ((𝑆 ∈ (SubMnd‘𝐺) ∧ 𝐴 ∈ (SubMnd‘𝐻)) → (𝐺 ↾s 𝐴) ∈ Mnd)
27		submrcl 18718	. . . . . 6 ⊢ (𝑆 ∈ (SubMnd‘𝐺) → 𝐺 ∈ Mnd)
28	27	adantr 480	. . . . 5 ⊢ ((𝑆 ∈ (SubMnd‘𝐺) ∧ 𝐴 ∈ (SubMnd‘𝐻)) → 𝐺 ∈ Mnd)
29		eqid 2733	. . . . . 6 ⊢ (𝐺 ↾s 𝐴) = (𝐺 ↾s 𝐴)
30	8, 12, 29	issubm2 18720	. . . . 5 ⊢ (𝐺 ∈ Mnd → (𝐴 ∈ (SubMnd‘𝐺) ↔ (𝐴 ⊆ (Base‘𝐺) ∧ (0g‘𝐺) ∈ 𝐴 ∧ (𝐺 ↾s 𝐴) ∈ Mnd)))
31	28, 30	syl 17	. . . 4 ⊢ ((𝑆 ∈ (SubMnd‘𝐺) ∧ 𝐴 ∈ (SubMnd‘𝐻)) → (𝐴 ∈ (SubMnd‘𝐺) ↔ (𝐴 ⊆ (Base‘𝐺) ∧ (0g‘𝐺) ∈ 𝐴 ∧ (𝐺 ↾s 𝐴) ∈ Mnd)))
32	11, 18, 26, 31	mpbir3and 1343	. . 3 ⊢ ((𝑆 ∈ (SubMnd‘𝐺) ∧ 𝐴 ∈ (SubMnd‘𝐻)) → 𝐴 ∈ (SubMnd‘𝐺))
33	32, 7	jca 511	. 2 ⊢ ((𝑆 ∈ (SubMnd‘𝐺) ∧ 𝐴 ∈ (SubMnd‘𝐻)) → (𝐴 ∈ (SubMnd‘𝐺) ∧ 𝐴 ⊆ 𝑆))
34		simprr 772	. . . 4 ⊢ ((𝑆 ∈ (SubMnd‘𝐺) ∧ (𝐴 ∈ (SubMnd‘𝐺) ∧ 𝐴 ⊆ 𝑆)) → 𝐴 ⊆ 𝑆)
35	5	adantr 480	. . . 4 ⊢ ((𝑆 ∈ (SubMnd‘𝐺) ∧ (𝐴 ∈ (SubMnd‘𝐺) ∧ 𝐴 ⊆ 𝑆)) → 𝑆 = (Base‘𝐻))
36	34, 35	sseqtrd 3967	. . 3 ⊢ ((𝑆 ∈ (SubMnd‘𝐺) ∧ (𝐴 ∈ (SubMnd‘𝐺) ∧ 𝐴 ⊆ 𝑆)) → 𝐴 ⊆ (Base‘𝐻))
37	13	adantr 480	. . . 4 ⊢ ((𝑆 ∈ (SubMnd‘𝐺) ∧ (𝐴 ∈ (SubMnd‘𝐺) ∧ 𝐴 ⊆ 𝑆)) → (0g‘𝐺) = (0g‘𝐻))
38	12	subm0cl 18727	. . . . 5 ⊢ (𝐴 ∈ (SubMnd‘𝐺) → (0g‘𝐺) ∈ 𝐴)
39	38	ad2antrl 728	. . . 4 ⊢ ((𝑆 ∈ (SubMnd‘𝐺) ∧ (𝐴 ∈ (SubMnd‘𝐺) ∧ 𝐴 ⊆ 𝑆)) → (0g‘𝐺) ∈ 𝐴)
40	37, 39	eqeltrrd 2834	. . 3 ⊢ ((𝑆 ∈ (SubMnd‘𝐺) ∧ (𝐴 ∈ (SubMnd‘𝐺) ∧ 𝐴 ⊆ 𝑆)) → (0g‘𝐻) ∈ 𝐴)
41	21	adantrl 716	. . . 4 ⊢ ((𝑆 ∈ (SubMnd‘𝐺) ∧ (𝐴 ∈ (SubMnd‘𝐺) ∧ 𝐴 ⊆ 𝑆)) → (𝐻 ↾s 𝐴) = (𝐺 ↾s 𝐴))
42	29	submmnd 18729	. . . . 5 ⊢ (𝐴 ∈ (SubMnd‘𝐺) → (𝐺 ↾s 𝐴) ∈ Mnd)
43	42	ad2antrl 728	. . . 4 ⊢ ((𝑆 ∈ (SubMnd‘𝐺) ∧ (𝐴 ∈ (SubMnd‘𝐺) ∧ 𝐴 ⊆ 𝑆)) → (𝐺 ↾s 𝐴) ∈ Mnd)
44	41, 43	eqeltrd 2833	. . 3 ⊢ ((𝑆 ∈ (SubMnd‘𝐺) ∧ (𝐴 ∈ (SubMnd‘𝐺) ∧ 𝐴 ⊆ 𝑆)) → (𝐻 ↾s 𝐴) ∈ Mnd)
45	4	submmnd 18729	. . . . 5 ⊢ (𝑆 ∈ (SubMnd‘𝐺) → 𝐻 ∈ Mnd)
46	45	adantr 480	. . . 4 ⊢ ((𝑆 ∈ (SubMnd‘𝐺) ∧ (𝐴 ∈ (SubMnd‘𝐺) ∧ 𝐴 ⊆ 𝑆)) → 𝐻 ∈ Mnd)
47	1, 15, 23	issubm2 18720	. . . 4 ⊢ (𝐻 ∈ Mnd → (𝐴 ∈ (SubMnd‘𝐻) ↔ (𝐴 ⊆ (Base‘𝐻) ∧ (0g‘𝐻) ∈ 𝐴 ∧ (𝐻 ↾s 𝐴) ∈ Mnd)))
48	46, 47	syl 17	. . 3 ⊢ ((𝑆 ∈ (SubMnd‘𝐺) ∧ (𝐴 ∈ (SubMnd‘𝐺) ∧ 𝐴 ⊆ 𝑆)) → (𝐴 ∈ (SubMnd‘𝐻) ↔ (𝐴 ⊆ (Base‘𝐻) ∧ (0g‘𝐻) ∈ 𝐴 ∧ (𝐻 ↾s 𝐴) ∈ Mnd)))
49	36, 40, 44, 48	mpbir3and 1343	. 2 ⊢ ((𝑆 ∈ (SubMnd‘𝐺) ∧ (𝐴 ∈ (SubMnd‘𝐺) ∧ 𝐴 ⊆ 𝑆)) → 𝐴 ∈ (SubMnd‘𝐻))
50	33, 49	impbida 800	1 ⊢ (𝑆 ∈ (SubMnd‘𝐺) → (𝐴 ∈ (SubMnd‘𝐻) ↔ (𝐴 ∈ (SubMnd‘𝐺) ∧ 𝐴 ⊆ 𝑆)))

Syntax hints:   → wi 4   ↔ wb 206   ∧ wa 395   ∧ w3a 1086   = wceq 1541   ∈ wcel 2113   ⊆ wss 3898  ‘cfv 6489  (class class class)co 7355  Basecbs 17127   ↾_s cress 17148  0_gc0g 17350  Mndcmnd 18650  SubMndcsubmnd 18698

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1796  ax-4 1810  ax-5 1911  ax-6 1968  ax-7 2009  ax-8 2115  ax-9 2123  ax-10 2146  ax-11 2162  ax-12 2182  ax-ext 2705  ax-sep 5238  ax-nul 5248  ax-pow 5307  ax-pr 5374  ax-un 7677  ax-cnex 11073  ax-resscn 11074  ax-1cn 11075  ax-icn 11076  ax-addcl 11077  ax-addrcl 11078  ax-mulcl 11079  ax-mulrcl 11080  ax-mulcom 11081  ax-addass 11082  ax-mulass 11083  ax-distr 11084  ax-i2m1 11085  ax-1ne0 11086  ax-1rid 11087  ax-rnegex 11088  ax-rrecex 11089  ax-cnre 11090  ax-pre-lttri 11091  ax-pre-lttrn 11092  ax-pre-ltadd 11093  ax-pre-mulgt0 11094

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3or 1087  df-3an 1088  df-tru 1544  df-fal 1554  df-ex 1781  df-nf 1785  df-sb 2068  df-mo 2537  df-eu 2566  df-clab 2712  df-cleq 2725  df-clel 2808  df-nfc 2882  df-ne 2930  df-nel 3034  df-ral 3049  df-rex 3058  df-rmo 3347  df-reu 3348  df-rab 3397  df-v 3439  df-sbc 3738  df-csb 3847  df-dif 3901  df-un 3903  df-in 3905  df-ss 3915  df-pss 3918  df-nul 4283  df-if 4477  df-pw 4553  df-sn 4578  df-pr 4580  df-op 4584  df-uni 4861  df-iun 4945  df-br 5096  df-opab 5158  df-mpt 5177  df-tr 5203  df-id 5516  df-eprel 5521  df-po 5529  df-so 5530  df-fr 5574  df-we 5576  df-xp 5627  df-rel 5628  df-cnv 5629  df-co 5630  df-dm 5631  df-rn 5632  df-res 5633  df-ima 5634  df-pred 6256  df-ord 6317  df-on 6318  df-lim 6319  df-suc 6320  df-iota 6445  df-fun 6491  df-fn 6492  df-f 6493  df-f1 6494  df-fo 6495  df-f1o 6496  df-fv 6497  df-riota 7312  df-ov 7358  df-oprab 7359  df-mpo 7360  df-om 7806  df-2nd 7931  df-frecs 8220  df-wrecs 8251  df-recs 8300  df-rdg 8338  df-er 8631  df-en 8880  df-dom 8881  df-sdom 8882  df-pnf 11159  df-mnf 11160  df-xr 11161  df-ltxr 11162  df-le 11163  df-sub 11357  df-neg 11358  df-nn 12137  df-2 12199  df-sets 17082  df-slot 17100  df-ndx 17112  df-base 17128  df-ress 17149  df-plusg 17181  df-0g 17352  df-mgm 18556  df-sgrp 18635  df-mnd 18651  df-submnd 18700

This theorem is referenced by:  zrhpsgnmhm  21530  amgmlem  26947  nn0archi  33356  amgmwlem  49963  amgmlemALT  49964