Theorem subsubm 18829

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 2737	. . . . . . . 8 ⊢ (Base‘𝐻) = (Base‘𝐻)
2	1	submss 18822	. . . . . . 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 18827	. . . . . . 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 4021	. . . . 5 ⊢ ((𝑆 ∈ (SubMnd‘𝐺) ∧ 𝐴 ∈ (SubMnd‘𝐻)) → 𝐴 ⊆ 𝑆)
8		eqid 2737	. . . . . . 7 ⊢ (Base‘𝐺) = (Base‘𝐺)
9	8	submss 18822	. . . . . 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 3994	. . . 4 ⊢ ((𝑆 ∈ (SubMnd‘𝐺) ∧ 𝐴 ∈ (SubMnd‘𝐻)) → 𝐴 ⊆ (Base‘𝐺))
12		eqid 2737	. . . . . . 7 ⊢ (0g‘𝐺) = (0g‘𝐺)
13	4, 12	subm0 18828	. . . . . 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 2737	. . . . . . 7 ⊢ (0g‘𝐻) = (0g‘𝐻)
16	15	subm0cl 18824	. . . . . 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 2841	. . . 4 ⊢ ((𝑆 ∈ (SubMnd‘𝐺) ∧ 𝐴 ∈ (SubMnd‘𝐻)) → (0g‘𝐺) ∈ 𝐴)
19	4	oveq1i 7441	. . . . . . 7 ⊢ (𝐻 ↾s 𝐴) = ((𝐺 ↾s 𝑆) ↾s 𝐴)
20		ressabs 17294	. . . . . . 7 ⊢ ((𝑆 ∈ (SubMnd‘𝐺) ∧ 𝐴 ⊆ 𝑆) → ((𝐺 ↾s 𝑆) ↾s 𝐴) = (𝐺 ↾s 𝐴))
21	19, 20	eqtrid 2789	. . . . . 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 2737	. . . . . . 7 ⊢ (𝐻 ↾s 𝐴) = (𝐻 ↾s 𝐴)
24	23	submmnd 18826	. . . . . 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 2842	. . . 4 ⊢ ((𝑆 ∈ (SubMnd‘𝐺) ∧ 𝐴 ∈ (SubMnd‘𝐻)) → (𝐺 ↾s 𝐴) ∈ Mnd)
27		submrcl 18815	. . . . . 6 ⊢ (𝑆 ∈ (SubMnd‘𝐺) → 𝐺 ∈ Mnd)
28	27	adantr 480	. . . . 5 ⊢ ((𝑆 ∈ (SubMnd‘𝐺) ∧ 𝐴 ∈ (SubMnd‘𝐻)) → 𝐺 ∈ Mnd)
29		eqid 2737	. . . . . 6 ⊢ (𝐺 ↾s 𝐴) = (𝐺 ↾s 𝐴)
30	8, 12, 29	issubm2 18817	. . . . 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 773	. . . 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 4020	. . 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 18824	. . . . 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 2842	. . 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 18826	. . . . 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 2841	. . 3 ⊢ ((𝑆 ∈ (SubMnd‘𝐺) ∧ (𝐴 ∈ (SubMnd‘𝐺) ∧ 𝐴 ⊆ 𝑆)) → (𝐻 ↾s 𝐴) ∈ Mnd)
45	4	submmnd 18826	. . . . 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 18817	. . . 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 801	1 ⊢ (𝑆 ∈ (SubMnd‘𝐺) → (𝐴 ∈ (SubMnd‘𝐻) ↔ (𝐴 ∈ (SubMnd‘𝐺) ∧ 𝐴 ⊆ 𝑆)))

Syntax hints:   → wi 4   ↔ wb 206   ∧ wa 395   ∧ w3a 1087   = wceq 1540   ∈ wcel 2108   ⊆ wss 3951  ‘cfv 6561  (class class class)co 7431  Basecbs 17247   ↾_s cress 17274  0_gc0g 17484  Mndcmnd 18747  SubMndcsubmnd 18795

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 1967  ax-7 2007  ax-8 2110  ax-9 2118  ax-10 2141  ax-11 2157  ax-12 2177  ax-ext 2708  ax-sep 5296  ax-nul 5306  ax-pow 5365  ax-pr 5432  ax-un 7755  ax-cnex 11211  ax-resscn 11212  ax-1cn 11213  ax-icn 11214  ax-addcl 11215  ax-addrcl 11216  ax-mulcl 11217  ax-mulrcl 11218  ax-mulcom 11219  ax-addass 11220  ax-mulass 11221  ax-distr 11222  ax-i2m1 11223  ax-1ne0 11224  ax-1rid 11225  ax-rnegex 11226  ax-rrecex 11227  ax-cnre 11228  ax-pre-lttri 11229  ax-pre-lttrn 11230  ax-pre-ltadd 11231  ax-pre-mulgt0 11232

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3or 1088  df-3an 1089  df-tru 1543  df-fal 1553  df-ex 1780  df-nf 1784  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-nel 3047  df-ral 3062  df-rex 3071  df-rmo 3380  df-reu 3381  df-rab 3437  df-v 3482  df-sbc 3789  df-csb 3900  df-dif 3954  df-un 3956  df-in 3958  df-ss 3968  df-pss 3971  df-nul 4334  df-if 4526  df-pw 4602  df-sn 4627  df-pr 4629  df-op 4633  df-uni 4908  df-iun 4993  df-br 5144  df-opab 5206  df-mpt 5226  df-tr 5260  df-id 5578  df-eprel 5584  df-po 5592  df-so 5593  df-fr 5637  df-we 5639  df-xp 5691  df-rel 5692  df-cnv 5693  df-co 5694  df-dm 5695  df-rn 5696  df-res 5697  df-ima 5698  df-pred 6321  df-ord 6387  df-on 6388  df-lim 6389  df-suc 6390  df-iota 6514  df-fun 6563  df-fn 6564  df-f 6565  df-f1 6566  df-fo 6567  df-f1o 6568  df-fv 6569  df-riota 7388  df-ov 7434  df-oprab 7435  df-mpo 7436  df-om 7888  df-2nd 8015  df-frecs 8306  df-wrecs 8337  df-recs 8411  df-rdg 8450  df-er 8745  df-en 8986  df-dom 8987  df-sdom 8988  df-pnf 11297  df-mnf 11298  df-xr 11299  df-ltxr 11300  df-le 11301  df-sub 11494  df-neg 11495  df-nn 12267  df-2 12329  df-sets 17201  df-slot 17219  df-ndx 17231  df-base 17248  df-ress 17275  df-plusg 17310  df-0g 17486  df-mgm 18653  df-sgrp 18732  df-mnd 18748  df-submnd 18797

This theorem is referenced by:  zrhpsgnmhm  21602  amgmlem  27033  nn0archi  33375  amgmwlem  49321  amgmlemALT  49322