lshpsmreu - Mathbox for Norm Megill

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Theorem lshpsmreu 37967

Description: Lemma for lshpkrex 37976. Show uniqueness of ring multiplier 𝑘 when a vector 𝑋 is broken down into components, one in a hyperplane and the other outside of it . TODO: do we need the cbvrexv 3361 for 𝑎 to 𝑐? (Contributed by NM, 4-Jan-2015.)

**Hypotheses**
Ref	Expression
lshpsmreu.v	⊢ 𝑉 = (Base‘𝑊)
lshpsmreu.a	⊢ + = (+_g‘𝑊)
lshpsmreu.n	⊢ 𝑁 = (LSpan‘𝑊)
lshpsmreu.p	⊢ ⊕ = (LSSum‘𝑊)
lshpsmreu.h	⊢ 𝐻 = (LSHyp‘𝑊)
lshpsmreu.w	⊢ (𝜑 → 𝑊 ∈ LVec)
lshpsmreu.u	⊢ (𝜑 → 𝑈 ∈ 𝐻)
lshpsmreu.z	⊢ (𝜑 → 𝑍 ∈ 𝑉)
lshpsmreu.x	⊢ (𝜑 → 𝑋 ∈ 𝑉)
lshpsmreu.e	⊢ (𝜑 → (𝑈 ⊕ (𝑁‘{𝑍})) = 𝑉)
lshpsmreu.d	⊢ 𝐷 = (Scalar‘𝑊)
lshpsmreu.k	⊢ 𝐾 = (Base‘𝐷)
lshpsmreu.t	⊢ · = ( ·_𝑠 ‘𝑊)

**Assertion**
Ref	Expression
lshpsmreu	⊢ (𝜑 → ∃!𝑘 ∈ 𝐾 ∃𝑦 ∈ 𝑈 𝑋 = (𝑦 + (𝑘 · 𝑍)))

Distinct variable groups: 𝑦,𝑘, + 𝑘,𝐾 · ,𝑘,𝑦 𝑈,𝑘,𝑦 𝑘,𝑋,𝑦 𝑘,𝑍,𝑦 Allowed substitution hints: 𝜑(𝑦,𝑘) 𝐷(𝑦,𝑘) ⊕ (𝑦,𝑘) 𝐻(𝑦,𝑘) 𝐾(𝑦) 𝑁(𝑦,𝑘) 𝑉(𝑦,𝑘) 𝑊(𝑦,𝑘)

Proof of Theorem lshpsmreu Dummy variables 𝑎 𝑏 𝑐 𝑙 𝑧 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		lshpsmreu.x	. . . . . . 7 ⊢ (𝜑 → 𝑋 ∈ 𝑉)
2		lshpsmreu.e	. . . . . . 7 ⊢ (𝜑 → (𝑈 ⊕ (𝑁‘{𝑍})) = 𝑉)
3	1, 2	eleqtrrd 2836	. . . . . 6 ⊢ (𝜑 → 𝑋 ∈ (𝑈 ⊕ (𝑁‘{𝑍})))
4		lshpsmreu.w	. . . . . . . . . 10 ⊢ (𝜑 → 𝑊 ∈ LVec)
5		lveclmod 20709	. . . . . . . . . 10 ⊢ (𝑊 ∈ LVec → 𝑊 ∈ LMod)
6	4, 5	syl 17	. . . . . . . . 9 ⊢ (𝜑 → 𝑊 ∈ LMod)
7		eqid 2732	. . . . . . . . . 10 ⊢ (LSubSp‘𝑊) = (LSubSp‘𝑊)
8	7	lsssssubg 20561	. . . . . . . . 9 ⊢ (𝑊 ∈ LMod → (LSubSp‘𝑊) ⊆ (SubGrp‘𝑊))
9	6, 8	syl 17	. . . . . . . 8 ⊢ (𝜑 → (LSubSp‘𝑊) ⊆ (SubGrp‘𝑊))
10		lshpsmreu.h	. . . . . . . . 9 ⊢ 𝐻 = (LSHyp‘𝑊)
11		lshpsmreu.u	. . . . . . . . 9 ⊢ (𝜑 → 𝑈 ∈ 𝐻)
12	7, 10, 6, 11	lshplss 37839	. . . . . . . 8 ⊢ (𝜑 → 𝑈 ∈ (LSubSp‘𝑊))
13	9, 12	sseldd 3982	. . . . . . 7 ⊢ (𝜑 → 𝑈 ∈ (SubGrp‘𝑊))
14		lshpsmreu.z	. . . . . . . . 9 ⊢ (𝜑 → 𝑍 ∈ 𝑉)
15		lshpsmreu.v	. . . . . . . . . 10 ⊢ 𝑉 = (Base‘𝑊)
16		lshpsmreu.n	. . . . . . . . . 10 ⊢ 𝑁 = (LSpan‘𝑊)
17	15, 7, 16	lspsncl 20580	. . . . . . . . 9 ⊢ ((𝑊 ∈ LMod ∧ 𝑍 ∈ 𝑉) → (𝑁‘{𝑍}) ∈ (LSubSp‘𝑊))
18	6, 14, 17	syl2anc 584	. . . . . . . 8 ⊢ (𝜑 → (𝑁‘{𝑍}) ∈ (LSubSp‘𝑊))
19	9, 18	sseldd 3982	. . . . . . 7 ⊢ (𝜑 → (𝑁‘{𝑍}) ∈ (SubGrp‘𝑊))
20		lshpsmreu.a	. . . . . . . 8 ⊢ + = (+_g‘𝑊)
21		lshpsmreu.p	. . . . . . . 8 ⊢ ⊕ = (LSSum‘𝑊)
22	20, 21	lsmelval 19511	. . . . . . 7 ⊢ ((𝑈 ∈ (SubGrp‘𝑊) ∧ (𝑁‘{𝑍}) ∈ (SubGrp‘𝑊)) → (𝑋 ∈ (𝑈 ⊕ (𝑁‘{𝑍})) ↔ ∃𝑐 ∈ 𝑈 ∃𝑧 ∈ (𝑁‘{𝑍})𝑋 = (𝑐 + 𝑧)))
23	13, 19, 22	syl2anc 584	. . . . . 6 ⊢ (𝜑 → (𝑋 ∈ (𝑈 ⊕ (𝑁‘{𝑍})) ↔ ∃𝑐 ∈ 𝑈 ∃𝑧 ∈ (𝑁‘{𝑍})𝑋 = (𝑐 + 𝑧)))
24	3, 23	mpbid 231	. . . . 5 ⊢ (𝜑 → ∃𝑐 ∈ 𝑈 ∃𝑧 ∈ (𝑁‘{𝑍})𝑋 = (𝑐 + 𝑧))
25		df-rex 3071	. . . . . . 7 ⊢ (∃𝑧 ∈ (𝑁‘{𝑍})𝑋 = (𝑐 + 𝑧) ↔ ∃𝑧(𝑧 ∈ (𝑁‘{𝑍}) ∧ 𝑋 = (𝑐 + 𝑧)))
26		lshpsmreu.d	. . . . . . . . . . . . 13 ⊢ 𝐷 = (Scalar‘𝑊)
27		lshpsmreu.k	. . . . . . . . . . . . 13 ⊢ 𝐾 = (Base‘𝐷)
28		lshpsmreu.t	. . . . . . . . . . . . 13 ⊢ · = ( ·_𝑠 ‘𝑊)
29	26, 27, 15, 28, 16	lspsnel 20606	. . . . . . . . . . . 12 ⊢ ((𝑊 ∈ LMod ∧ 𝑍 ∈ 𝑉) → (𝑧 ∈ (𝑁‘{𝑍}) ↔ ∃𝑏 ∈ 𝐾 𝑧 = (𝑏 · 𝑍)))
30	6, 14, 29	syl2anc 584	. . . . . . . . . . 11 ⊢ (𝜑 → (𝑧 ∈ (𝑁‘{𝑍}) ↔ ∃𝑏 ∈ 𝐾 𝑧 = (𝑏 · 𝑍)))
31	30	anbi1d 630	. . . . . . . . . 10 ⊢ (𝜑 → ((𝑧 ∈ (𝑁‘{𝑍}) ∧ 𝑋 = (𝑐 + 𝑧)) ↔ (∃𝑏 ∈ 𝐾 𝑧 = (𝑏 · 𝑍) ∧ 𝑋 = (𝑐 + 𝑧))))
32		r19.41v 3188	. . . . . . . . . 10 ⊢ (∃𝑏 ∈ 𝐾 (𝑧 = (𝑏 · 𝑍) ∧ 𝑋 = (𝑐 + 𝑧)) ↔ (∃𝑏 ∈ 𝐾 𝑧 = (𝑏 · 𝑍) ∧ 𝑋 = (𝑐 + 𝑧)))
33	31, 32	bitr4di 288	. . . . . . . . 9 ⊢ (𝜑 → ((𝑧 ∈ (𝑁‘{𝑍}) ∧ 𝑋 = (𝑐 + 𝑧)) ↔ ∃𝑏 ∈ 𝐾 (𝑧 = (𝑏 · 𝑍) ∧ 𝑋 = (𝑐 + 𝑧))))
34	33	exbidv 1924	. . . . . . . 8 ⊢ (𝜑 → (∃𝑧(𝑧 ∈ (𝑁‘{𝑍}) ∧ 𝑋 = (𝑐 + 𝑧)) ↔ ∃𝑧∃𝑏 ∈ 𝐾 (𝑧 = (𝑏 · 𝑍) ∧ 𝑋 = (𝑐 + 𝑧))))
35		rexcom4 3285	. . . . . . . . 9 ⊢ (∃𝑏 ∈ 𝐾 ∃𝑧(𝑧 = (𝑏 · 𝑍) ∧ 𝑋 = (𝑐 + 𝑧)) ↔ ∃𝑧∃𝑏 ∈ 𝐾 (𝑧 = (𝑏 · 𝑍) ∧ 𝑋 = (𝑐 + 𝑧)))
36		ovex 7438	. . . . . . . . . . 11 ⊢ (𝑏 · 𝑍) ∈ V
37		oveq2 7413	. . . . . . . . . . . 12 ⊢ (𝑧 = (𝑏 · 𝑍) → (𝑐 + 𝑧) = (𝑐 + (𝑏 · 𝑍)))
38	37	eqeq2d 2743	. . . . . . . . . . 11 ⊢ (𝑧 = (𝑏 · 𝑍) → (𝑋 = (𝑐 + 𝑧) ↔ 𝑋 = (𝑐 + (𝑏 · 𝑍))))
39	36, 38	ceqsexv 3525	. . . . . . . . . 10 ⊢ (∃𝑧(𝑧 = (𝑏 · 𝑍) ∧ 𝑋 = (𝑐 + 𝑧)) ↔ 𝑋 = (𝑐 + (𝑏 · 𝑍)))
40	39	rexbii 3094	. . . . . . . . 9 ⊢ (∃𝑏 ∈ 𝐾 ∃𝑧(𝑧 = (𝑏 · 𝑍) ∧ 𝑋 = (𝑐 + 𝑧)) ↔ ∃𝑏 ∈ 𝐾 𝑋 = (𝑐 + (𝑏 · 𝑍)))
41	35, 40	bitr3i 276	. . . . . . . 8 ⊢ (∃𝑧∃𝑏 ∈ 𝐾 (𝑧 = (𝑏 · 𝑍) ∧ 𝑋 = (𝑐 + 𝑧)) ↔ ∃𝑏 ∈ 𝐾 𝑋 = (𝑐 + (𝑏 · 𝑍)))
42	34, 41	bitrdi 286	. . . . . . 7 ⊢ (𝜑 → (∃𝑧(𝑧 ∈ (𝑁‘{𝑍}) ∧ 𝑋 = (𝑐 + 𝑧)) ↔ ∃𝑏 ∈ 𝐾 𝑋 = (𝑐 + (𝑏 · 𝑍))))
43	25, 42	bitrid 282	. . . . . 6 ⊢ (𝜑 → (∃𝑧 ∈ (𝑁‘{𝑍})𝑋 = (𝑐 + 𝑧) ↔ ∃𝑏 ∈ 𝐾 𝑋 = (𝑐 + (𝑏 · 𝑍))))
44	43	rexbidv 3178	. . . . 5 ⊢ (𝜑 → (∃𝑐 ∈ 𝑈 ∃𝑧 ∈ (𝑁‘{𝑍})𝑋 = (𝑐 + 𝑧) ↔ ∃𝑐 ∈ 𝑈 ∃𝑏 ∈ 𝐾 𝑋 = (𝑐 + (𝑏 · 𝑍))))
45	24, 44	mpbid 231	. . . 4 ⊢ (𝜑 → ∃𝑐 ∈ 𝑈 ∃𝑏 ∈ 𝐾 𝑋 = (𝑐 + (𝑏 · 𝑍)))
46		rexcom 3287	. . . 4 ⊢ (∃𝑐 ∈ 𝑈 ∃𝑏 ∈ 𝐾 𝑋 = (𝑐 + (𝑏 · 𝑍)) ↔ ∃𝑏 ∈ 𝐾 ∃𝑐 ∈ 𝑈 𝑋 = (𝑐 + (𝑏 · 𝑍)))
47	45, 46	sylib 217	. . 3 ⊢ (𝜑 → ∃𝑏 ∈ 𝐾 ∃𝑐 ∈ 𝑈 𝑋 = (𝑐 + (𝑏 · 𝑍)))
48		oveq1 7412	. . . . . . . 8 ⊢ (𝑐 = 𝑎 → (𝑐 + (𝑏 · 𝑍)) = (𝑎 + (𝑏 · 𝑍)))
49	48	eqeq2d 2743	. . . . . . 7 ⊢ (𝑐 = 𝑎 → (𝑋 = (𝑐 + (𝑏 · 𝑍)) ↔ 𝑋 = (𝑎 + (𝑏 · 𝑍))))
50	49	cbvrexvw 3235	. . . . . 6 ⊢ (∃𝑐 ∈ 𝑈 𝑋 = (𝑐 + (𝑏 · 𝑍)) ↔ ∃𝑎 ∈ 𝑈 𝑋 = (𝑎 + (𝑏 · 𝑍)))
51		eqid 2732	. . . . . . . . . 10 ⊢ (0_g‘𝑊) = (0_g‘𝑊)
52		eqid 2732	. . . . . . . . . 10 ⊢ (Cntz‘𝑊) = (Cntz‘𝑊)
53		simp11l 1284	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ (𝑏 ∈ 𝐾 ∧ 𝑙 ∈ 𝐾)) ∧ 𝑎 ∈ 𝑈 ∧ 𝑋 = (𝑎 + (𝑏 · 𝑍))) ∧ 𝑐 ∈ 𝑈 ∧ 𝑋 = (𝑐 + (𝑙 · 𝑍))) → 𝜑)
54	53, 13	syl 17	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ (𝑏 ∈ 𝐾 ∧ 𝑙 ∈ 𝐾)) ∧ 𝑎 ∈ 𝑈 ∧ 𝑋 = (𝑎 + (𝑏 · 𝑍))) ∧ 𝑐 ∈ 𝑈 ∧ 𝑋 = (𝑐 + (𝑙 · 𝑍))) → 𝑈 ∈ (SubGrp‘𝑊))
55	53, 19	syl 17	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ (𝑏 ∈ 𝐾 ∧ 𝑙 ∈ 𝐾)) ∧ 𝑎 ∈ 𝑈 ∧ 𝑋 = (𝑎 + (𝑏 · 𝑍))) ∧ 𝑐 ∈ 𝑈 ∧ 𝑋 = (𝑐 + (𝑙 · 𝑍))) → (𝑁‘{𝑍}) ∈ (SubGrp‘𝑊))
56	15, 51, 16, 21, 10, 4, 11, 14, 2	lshpdisj 37845	. . . . . . . . . . 11 ⊢ (𝜑 → (𝑈 ∩ (𝑁‘{𝑍})) = {(0_g‘𝑊)})
57	53, 56	syl 17	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ (𝑏 ∈ 𝐾 ∧ 𝑙 ∈ 𝐾)) ∧ 𝑎 ∈ 𝑈 ∧ 𝑋 = (𝑎 + (𝑏 · 𝑍))) ∧ 𝑐 ∈ 𝑈 ∧ 𝑋 = (𝑐 + (𝑙 · 𝑍))) → (𝑈 ∩ (𝑁‘{𝑍})) = {(0_g‘𝑊)})
58	53, 4	syl 17	. . . . . . . . . . . . 13 ⊢ ((((𝜑 ∧ (𝑏 ∈ 𝐾 ∧ 𝑙 ∈ 𝐾)) ∧ 𝑎 ∈ 𝑈 ∧ 𝑋 = (𝑎 + (𝑏 · 𝑍))) ∧ 𝑐 ∈ 𝑈 ∧ 𝑋 = (𝑐 + (𝑙 · 𝑍))) → 𝑊 ∈ LVec)
59	58, 5	syl 17	. . . . . . . . . . . 12 ⊢ ((((𝜑 ∧ (𝑏 ∈ 𝐾 ∧ 𝑙 ∈ 𝐾)) ∧ 𝑎 ∈ 𝑈 ∧ 𝑋 = (𝑎 + (𝑏 · 𝑍))) ∧ 𝑐 ∈ 𝑈 ∧ 𝑋 = (𝑐 + (𝑙 · 𝑍))) → 𝑊 ∈ LMod)
60		lmodabl 20511	. . . . . . . . . . . 12 ⊢ (𝑊 ∈ LMod → 𝑊 ∈ Abel)
61	59, 60	syl 17	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ (𝑏 ∈ 𝐾 ∧ 𝑙 ∈ 𝐾)) ∧ 𝑎 ∈ 𝑈 ∧ 𝑋 = (𝑎 + (𝑏 · 𝑍))) ∧ 𝑐 ∈ 𝑈 ∧ 𝑋 = (𝑐 + (𝑙 · 𝑍))) → 𝑊 ∈ Abel)
62	52, 61, 54, 55	ablcntzd 19719	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ (𝑏 ∈ 𝐾 ∧ 𝑙 ∈ 𝐾)) ∧ 𝑎 ∈ 𝑈 ∧ 𝑋 = (𝑎 + (𝑏 · 𝑍))) ∧ 𝑐 ∈ 𝑈 ∧ 𝑋 = (𝑐 + (𝑙 · 𝑍))) → 𝑈 ⊆ ((Cntz‘𝑊)‘(𝑁‘{𝑍})))
63		simp12 1204	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ (𝑏 ∈ 𝐾 ∧ 𝑙 ∈ 𝐾)) ∧ 𝑎 ∈ 𝑈 ∧ 𝑋 = (𝑎 + (𝑏 · 𝑍))) ∧ 𝑐 ∈ 𝑈 ∧ 𝑋 = (𝑐 + (𝑙 · 𝑍))) → 𝑎 ∈ 𝑈)
64		simp2 1137	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ (𝑏 ∈ 𝐾 ∧ 𝑙 ∈ 𝐾)) ∧ 𝑎 ∈ 𝑈 ∧ 𝑋 = (𝑎 + (𝑏 · 𝑍))) ∧ 𝑐 ∈ 𝑈 ∧ 𝑋 = (𝑐 + (𝑙 · 𝑍))) → 𝑐 ∈ 𝑈)
65		simp1rl 1238	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ (𝑏 ∈ 𝐾 ∧ 𝑙 ∈ 𝐾)) ∧ 𝑎 ∈ 𝑈 ∧ 𝑋 = (𝑎 + (𝑏 · 𝑍))) → 𝑏 ∈ 𝐾)
66	65	3ad2ant1 1133	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ (𝑏 ∈ 𝐾 ∧ 𝑙 ∈ 𝐾)) ∧ 𝑎 ∈ 𝑈 ∧ 𝑋 = (𝑎 + (𝑏 · 𝑍))) ∧ 𝑐 ∈ 𝑈 ∧ 𝑋 = (𝑐 + (𝑙 · 𝑍))) → 𝑏 ∈ 𝐾)
67	53, 14	syl 17	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ (𝑏 ∈ 𝐾 ∧ 𝑙 ∈ 𝐾)) ∧ 𝑎 ∈ 𝑈 ∧ 𝑋 = (𝑎 + (𝑏 · 𝑍))) ∧ 𝑐 ∈ 𝑈 ∧ 𝑋 = (𝑐 + (𝑙 · 𝑍))) → 𝑍 ∈ 𝑉)
68	15, 28, 26, 27, 16, 59, 66, 67	lspsneli 20604	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ (𝑏 ∈ 𝐾 ∧ 𝑙 ∈ 𝐾)) ∧ 𝑎 ∈ 𝑈 ∧ 𝑋 = (𝑎 + (𝑏 · 𝑍))) ∧ 𝑐 ∈ 𝑈 ∧ 𝑋 = (𝑐 + (𝑙 · 𝑍))) → (𝑏 · 𝑍) ∈ (𝑁‘{𝑍}))
69		simp1rr 1239	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ (𝑏 ∈ 𝐾 ∧ 𝑙 ∈ 𝐾)) ∧ 𝑎 ∈ 𝑈 ∧ 𝑋 = (𝑎 + (𝑏 · 𝑍))) → 𝑙 ∈ 𝐾)
70	69	3ad2ant1 1133	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ (𝑏 ∈ 𝐾 ∧ 𝑙 ∈ 𝐾)) ∧ 𝑎 ∈ 𝑈 ∧ 𝑋 = (𝑎 + (𝑏 · 𝑍))) ∧ 𝑐 ∈ 𝑈 ∧ 𝑋 = (𝑐 + (𝑙 · 𝑍))) → 𝑙 ∈ 𝐾)
71	15, 28, 26, 27, 16, 59, 70, 67	lspsneli 20604	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ (𝑏 ∈ 𝐾 ∧ 𝑙 ∈ 𝐾)) ∧ 𝑎 ∈ 𝑈 ∧ 𝑋 = (𝑎 + (𝑏 · 𝑍))) ∧ 𝑐 ∈ 𝑈 ∧ 𝑋 = (𝑐 + (𝑙 · 𝑍))) → (𝑙 · 𝑍) ∈ (𝑁‘{𝑍}))
72		simp13 1205	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ (𝑏 ∈ 𝐾 ∧ 𝑙 ∈ 𝐾)) ∧ 𝑎 ∈ 𝑈 ∧ 𝑋 = (𝑎 + (𝑏 · 𝑍))) ∧ 𝑐 ∈ 𝑈 ∧ 𝑋 = (𝑐 + (𝑙 · 𝑍))) → 𝑋 = (𝑎 + (𝑏 · 𝑍)))
73		simp3 1138	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ (𝑏 ∈ 𝐾 ∧ 𝑙 ∈ 𝐾)) ∧ 𝑎 ∈ 𝑈 ∧ 𝑋 = (𝑎 + (𝑏 · 𝑍))) ∧ 𝑐 ∈ 𝑈 ∧ 𝑋 = (𝑐 + (𝑙 · 𝑍))) → 𝑋 = (𝑐 + (𝑙 · 𝑍)))
74	72, 73	eqtr3d 2774	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ (𝑏 ∈ 𝐾 ∧ 𝑙 ∈ 𝐾)) ∧ 𝑎 ∈ 𝑈 ∧ 𝑋 = (𝑎 + (𝑏 · 𝑍))) ∧ 𝑐 ∈ 𝑈 ∧ 𝑋 = (𝑐 + (𝑙 · 𝑍))) → (𝑎 + (𝑏 · 𝑍)) = (𝑐 + (𝑙 · 𝑍)))
75	20, 51, 52, 54, 55, 57, 62, 63, 64, 68, 71, 74	subgdisj2 19554	. . . . . . . . 9 ⊢ ((((𝜑 ∧ (𝑏 ∈ 𝐾 ∧ 𝑙 ∈ 𝐾)) ∧ 𝑎 ∈ 𝑈 ∧ 𝑋 = (𝑎 + (𝑏 · 𝑍))) ∧ 𝑐 ∈ 𝑈 ∧ 𝑋 = (𝑐 + (𝑙 · 𝑍))) → (𝑏 · 𝑍) = (𝑙 · 𝑍))
76	53, 11	syl 17	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ (𝑏 ∈ 𝐾 ∧ 𝑙 ∈ 𝐾)) ∧ 𝑎 ∈ 𝑈 ∧ 𝑋 = (𝑎 + (𝑏 · 𝑍))) ∧ 𝑐 ∈ 𝑈 ∧ 𝑋 = (𝑐 + (𝑙 · 𝑍))) → 𝑈 ∈ 𝐻)
77	53, 2	syl 17	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ (𝑏 ∈ 𝐾 ∧ 𝑙 ∈ 𝐾)) ∧ 𝑎 ∈ 𝑈 ∧ 𝑋 = (𝑎 + (𝑏 · 𝑍))) ∧ 𝑐 ∈ 𝑈 ∧ 𝑋 = (𝑐 + (𝑙 · 𝑍))) → (𝑈 ⊕ (𝑁‘{𝑍})) = 𝑉)
78	15, 16, 21, 10, 51, 59, 76, 67, 77	lshpne0 37844	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ (𝑏 ∈ 𝐾 ∧ 𝑙 ∈ 𝐾)) ∧ 𝑎 ∈ 𝑈 ∧ 𝑋 = (𝑎 + (𝑏 · 𝑍))) ∧ 𝑐 ∈ 𝑈 ∧ 𝑋 = (𝑐 + (𝑙 · 𝑍))) → 𝑍 ≠ (0_g‘𝑊))
79	15, 28, 26, 27, 51, 58, 66, 70, 67, 78	lvecvscan2 20717	. . . . . . . . 9 ⊢ ((((𝜑 ∧ (𝑏 ∈ 𝐾 ∧ 𝑙 ∈ 𝐾)) ∧ 𝑎 ∈ 𝑈 ∧ 𝑋 = (𝑎 + (𝑏 · 𝑍))) ∧ 𝑐 ∈ 𝑈 ∧ 𝑋 = (𝑐 + (𝑙 · 𝑍))) → ((𝑏 · 𝑍) = (𝑙 · 𝑍) ↔ 𝑏 = 𝑙))
80	75, 79	mpbid 231	. . . . . . . 8 ⊢ ((((𝜑 ∧ (𝑏 ∈ 𝐾 ∧ 𝑙 ∈ 𝐾)) ∧ 𝑎 ∈ 𝑈 ∧ 𝑋 = (𝑎 + (𝑏 · 𝑍))) ∧ 𝑐 ∈ 𝑈 ∧ 𝑋 = (𝑐 + (𝑙 · 𝑍))) → 𝑏 = 𝑙)
81	80	rexlimdv3a 3159	. . . . . . 7 ⊢ (((𝜑 ∧ (𝑏 ∈ 𝐾 ∧ 𝑙 ∈ 𝐾)) ∧ 𝑎 ∈ 𝑈 ∧ 𝑋 = (𝑎 + (𝑏 · 𝑍))) → (∃𝑐 ∈ 𝑈 𝑋 = (𝑐 + (𝑙 · 𝑍)) → 𝑏 = 𝑙))
82	81	rexlimdv3a 3159	. . . . . 6 ⊢ ((𝜑 ∧ (𝑏 ∈ 𝐾 ∧ 𝑙 ∈ 𝐾)) → (∃𝑎 ∈ 𝑈 𝑋 = (𝑎 + (𝑏 · 𝑍)) → (∃𝑐 ∈ 𝑈 𝑋 = (𝑐 + (𝑙 · 𝑍)) → 𝑏 = 𝑙)))
83	50, 82	biimtrid 241	. . . . 5 ⊢ ((𝜑 ∧ (𝑏 ∈ 𝐾 ∧ 𝑙 ∈ 𝐾)) → (∃𝑐 ∈ 𝑈 𝑋 = (𝑐 + (𝑏 · 𝑍)) → (∃𝑐 ∈ 𝑈 𝑋 = (𝑐 + (𝑙 · 𝑍)) → 𝑏 = 𝑙)))
84	83	impd 411	. . . 4 ⊢ ((𝜑 ∧ (𝑏 ∈ 𝐾 ∧ 𝑙 ∈ 𝐾)) → ((∃𝑐 ∈ 𝑈 𝑋 = (𝑐 + (𝑏 · 𝑍)) ∧ ∃𝑐 ∈ 𝑈 𝑋 = (𝑐 + (𝑙 · 𝑍))) → 𝑏 = 𝑙))
85	84	ralrimivva 3200	. . 3 ⊢ (𝜑 → ∀𝑏 ∈ 𝐾 ∀𝑙 ∈ 𝐾 ((∃𝑐 ∈ 𝑈 𝑋 = (𝑐 + (𝑏 · 𝑍)) ∧ ∃𝑐 ∈ 𝑈 𝑋 = (𝑐 + (𝑙 · 𝑍))) → 𝑏 = 𝑙))
86		oveq1 7412	. . . . . . 7 ⊢ (𝑏 = 𝑙 → (𝑏 · 𝑍) = (𝑙 · 𝑍))
87	86	oveq2d 7421	. . . . . 6 ⊢ (𝑏 = 𝑙 → (𝑐 + (𝑏 · 𝑍)) = (𝑐 + (𝑙 · 𝑍)))
88	87	eqeq2d 2743	. . . . 5 ⊢ (𝑏 = 𝑙 → (𝑋 = (𝑐 + (𝑏 · 𝑍)) ↔ 𝑋 = (𝑐 + (𝑙 · 𝑍))))
89	88	rexbidv 3178	. . . 4 ⊢ (𝑏 = 𝑙 → (∃𝑐 ∈ 𝑈 𝑋 = (𝑐 + (𝑏 · 𝑍)) ↔ ∃𝑐 ∈ 𝑈 𝑋 = (𝑐 + (𝑙 · 𝑍))))
90	89	reu4 3726	. . 3 ⊢ (∃!𝑏 ∈ 𝐾 ∃𝑐 ∈ 𝑈 𝑋 = (𝑐 + (𝑏 · 𝑍)) ↔ (∃𝑏 ∈ 𝐾 ∃𝑐 ∈ 𝑈 𝑋 = (𝑐 + (𝑏 · 𝑍)) ∧ ∀𝑏 ∈ 𝐾 ∀𝑙 ∈ 𝐾 ((∃𝑐 ∈ 𝑈 𝑋 = (𝑐 + (𝑏 · 𝑍)) ∧ ∃𝑐 ∈ 𝑈 𝑋 = (𝑐 + (𝑙 · 𝑍))) → 𝑏 = 𝑙)))
91	47, 85, 90	sylanbrc 583	. 2 ⊢ (𝜑 → ∃!𝑏 ∈ 𝐾 ∃𝑐 ∈ 𝑈 𝑋 = (𝑐 + (𝑏 · 𝑍)))
92		oveq1 7412	. . . . . . 7 ⊢ (𝑏 = 𝑘 → (𝑏 · 𝑍) = (𝑘 · 𝑍))
93	92	oveq2d 7421	. . . . . 6 ⊢ (𝑏 = 𝑘 → (𝑐 + (𝑏 · 𝑍)) = (𝑐 + (𝑘 · 𝑍)))
94	93	eqeq2d 2743	. . . . 5 ⊢ (𝑏 = 𝑘 → (𝑋 = (𝑐 + (𝑏 · 𝑍)) ↔ 𝑋 = (𝑐 + (𝑘 · 𝑍))))
95	94	rexbidv 3178	. . . 4 ⊢ (𝑏 = 𝑘 → (∃𝑐 ∈ 𝑈 𝑋 = (𝑐 + (𝑏 · 𝑍)) ↔ ∃𝑐 ∈ 𝑈 𝑋 = (𝑐 + (𝑘 · 𝑍))))
96	95	cbvreuvw 3400	. . 3 ⊢ (∃!𝑏 ∈ 𝐾 ∃𝑐 ∈ 𝑈 𝑋 = (𝑐 + (𝑏 · 𝑍)) ↔ ∃!𝑘 ∈ 𝐾 ∃𝑐 ∈ 𝑈 𝑋 = (𝑐 + (𝑘 · 𝑍)))
97		oveq1 7412	. . . . . 6 ⊢ (𝑐 = 𝑦 → (𝑐 + (𝑘 · 𝑍)) = (𝑦 + (𝑘 · 𝑍)))
98	97	eqeq2d 2743	. . . . 5 ⊢ (𝑐 = 𝑦 → (𝑋 = (𝑐 + (𝑘 · 𝑍)) ↔ 𝑋 = (𝑦 + (𝑘 · 𝑍))))
99	98	cbvrexvw 3235	. . . 4 ⊢ (∃𝑐 ∈ 𝑈 𝑋 = (𝑐 + (𝑘 · 𝑍)) ↔ ∃𝑦 ∈ 𝑈 𝑋 = (𝑦 + (𝑘 · 𝑍)))
100	99	reubii 3385	. . 3 ⊢ (∃!𝑘 ∈ 𝐾 ∃𝑐 ∈ 𝑈 𝑋 = (𝑐 + (𝑘 · 𝑍)) ↔ ∃!𝑘 ∈ 𝐾 ∃𝑦 ∈ 𝑈 𝑋 = (𝑦 + (𝑘 · 𝑍)))
101	96, 100	bitri 274	. 2 ⊢ (∃!𝑏 ∈ 𝐾 ∃𝑐 ∈ 𝑈 𝑋 = (𝑐 + (𝑏 · 𝑍)) ↔ ∃!𝑘 ∈ 𝐾 ∃𝑦 ∈ 𝑈 𝑋 = (𝑦 + (𝑘 · 𝑍)))
102	91, 101	sylib 217	1 ⊢ (𝜑 → ∃!𝑘 ∈ 𝐾 ∃𝑦 ∈ 𝑈 𝑋 = (𝑦 + (𝑘 · 𝑍)))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ↔ wb 205 ∧ wa 396 ∧ w3a 1087 = wceq 1541 ∃wex 1781 ∈ wcel 2106 ∀wral 3061 ∃wrex 3070 ∃!wreu 3374 ∩ cin 3946 ⊆ wss 3947 {csn 4627 ‘cfv 6540 (class class class)co 7405 Basecbs 17140 +_gcplusg 17193 Scalarcsca 17196 ·_𝑠 cvsca 17197 0_gc0g 17381 SubGrpcsubg 18994 Cntzccntz 19173 LSSumclsm 19496 Abelcabl 19643 LModclmod 20463 LSubSpclss 20534 LSpanclspn 20574 LVecclvec 20705 LSHypclsh 37833

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2703 ax-rep 5284 ax-sep 5298 ax-nul 5305 ax-pow 5362 ax-pr 5426 ax-un 7721 ax-cnex 11162 ax-resscn 11163 ax-1cn 11164 ax-icn 11165 ax-addcl 11166 ax-addrcl 11167 ax-mulcl 11168 ax-mulrcl 11169 ax-mulcom 11170 ax-addass 11171 ax-mulass 11172 ax-distr 11173 ax-i2m1 11174 ax-1ne0 11175 ax-1rid 11176 ax-rnegex 11177 ax-rrecex 11178 ax-cnre 11179 ax-pre-lttri 11180 ax-pre-lttrn 11181 ax-pre-ltadd 11182 ax-pre-mulgt0 11183

This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3or 1088 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2534 df-eu 2563 df-clab 2710 df-cleq 2724 df-clel 2810 df-nfc 2885 df-ne 2941 df-nel 3047 df-ral 3062 df-rex 3071 df-rmo 3376 df-reu 3377 df-rab 3433 df-v 3476 df-sbc 3777 df-csb 3893 df-dif 3950 df-un 3952 df-in 3954 df-ss 3964 df-pss 3966 df-nul 4322 df-if 4528 df-pw 4603 df-sn 4628 df-pr 4630 df-op 4634 df-uni 4908 df-int 4950 df-iun 4998 df-br 5148 df-opab 5210 df-mpt 5231 df-tr 5265 df-id 5573 df-eprel 5579 df-po 5587 df-so 5588 df-fr 5630 df-we 5632 df-xp 5681 df-rel 5682 df-cnv 5683 df-co 5684 df-dm 5685 df-rn 5686 df-res 5687 df-ima 5688 df-pred 6297 df-ord 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6492 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-riota 7361 df-ov 7408 df-oprab 7409 df-mpo 7410 df-om 7852 df-1st 7971 df-2nd 7972 df-tpos 8207 df-frecs 8262 df-wrecs 8293 df-recs 8367 df-rdg 8406 df-er 8699 df-en 8936 df-dom 8937 df-sdom 8938 df-pnf 11246 df-mnf 11247 df-xr 11248 df-ltxr 11249 df-le 11250 df-sub 11442 df-neg 11443 df-nn 12209 df-2 12271 df-3 12272 df-sets 17093 df-slot 17111 df-ndx 17123 df-base 17141 df-ress 17170 df-plusg 17206 df-mulr 17207 df-0g 17383 df-mgm 18557 df-sgrp 18606 df-mnd 18622 df-submnd 18668 df-grp 18818 df-minusg 18819 df-sbg 18820 df-subg 18997 df-cntz 19175 df-lsm 19498 df-cmn 19644 df-abl 19645 df-mgp 19982 df-ur 19999 df-ring 20051 df-oppr 20142 df-dvdsr 20163 df-unit 20164 df-invr 20194 df-drng 20309 df-lmod 20465 df-lss 20535 df-lsp 20575 df-lvec 20706 df-lshyp 37835

This theorem is referenced by: lshpkrlem1 37968 lshpkrlem2 37969 lshpkrlem3 37970 lshpkrcl 37974 dochfl1 40335

W3C validator