lindsunlem - Mathbox for Thierry Arnoux

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Theorem lindsunlem 33227

Description: Lemma for lindsun 33228. (Contributed by Thierry Arnoux, 9-May-2023.)

**Hypotheses**
Ref	Expression
lindsun.n	⊢ 𝑁 = (LSpan‘𝑊)
lindsun.0	⊢ 0 = (0_g‘𝑊)
lindsun.w	⊢ (𝜑 → 𝑊 ∈ LVec)
lindsun.u	⊢ (𝜑 → 𝑈 ∈ (LIndS‘𝑊))
lindsun.v	⊢ (𝜑 → 𝑉 ∈ (LIndS‘𝑊))
lindsun.2	⊢ (𝜑 → ((𝑁‘𝑈) ∩ (𝑁‘𝑉)) = { 0 })
lindsunlem.o	⊢ 𝑂 = (0_g‘(Scalar‘𝑊))
lindsunlem.f	⊢ 𝐹 = (Base‘(Scalar‘𝑊))
lindsunlem.c	⊢ (𝜑 → 𝐶 ∈ 𝑈)
lindsunlem.k	⊢ (𝜑 → 𝐾 ∈ (𝐹 ∖ {𝑂}))
lindsunlem.1	⊢ (𝜑 → (𝐾( ·_𝑠 ‘𝑊)𝐶) ∈ (𝑁‘((𝑈 ∪ 𝑉) ∖ {𝐶})))

**Assertion**
Ref	Expression
lindsunlem	⊢ (𝜑 → ⊥)

Proof of Theorem lindsunlem Dummy variables 𝑐 𝑘 𝑥 𝑦 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		simpr 484	. . . . 5 ⊢ ((((𝜑 ∧ 𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))) ∧ 𝑦 ∈ (𝑁‘𝑉)) ∧ (𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦)) → (𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦))
2		lindsun.w	. . . . . . . . . . . . . 14 ⊢ (𝜑 → 𝑊 ∈ LVec)
3		lveclmod 20954	. . . . . . . . . . . . . 14 ⊢ (𝑊 ∈ LVec → 𝑊 ∈ LMod)
4	2, 3	syl 17	. . . . . . . . . . . . 13 ⊢ (𝜑 → 𝑊 ∈ LMod)
5		lmodgrp 20713	. . . . . . . . . . . . 13 ⊢ (𝑊 ∈ LMod → 𝑊 ∈ Grp)
6	4, 5	syl 17	. . . . . . . . . . . 12 ⊢ (𝜑 → 𝑊 ∈ Grp)
7	6	ad3antrrr 727	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ 𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))) ∧ 𝑦 ∈ (𝑁‘𝑉)) ∧ (𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦)) → 𝑊 ∈ Grp)
8		lmodabl 20755	. . . . . . . . . . . . . . 15 ⊢ (𝑊 ∈ LMod → 𝑊 ∈ Abel)
9	4, 8	syl 17	. . . . . . . . . . . . . 14 ⊢ (𝜑 → 𝑊 ∈ Abel)
10	9	ad3antrrr 727	. . . . . . . . . . . . 13 ⊢ ((((𝜑 ∧ 𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))) ∧ 𝑦 ∈ (𝑁‘𝑉)) ∧ (𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦)) → 𝑊 ∈ Abel)
11		lindsun.u	. . . . . . . . . . . . . . . . 17 ⊢ (𝜑 → 𝑈 ∈ (LIndS‘𝑊))
12		eqid 2726	. . . . . . . . . . . . . . . . . 18 ⊢ (Base‘𝑊) = (Base‘𝑊)
13	12	linds1 21705	. . . . . . . . . . . . . . . . 17 ⊢ (𝑈 ∈ (LIndS‘𝑊) → 𝑈 ⊆ (Base‘𝑊))
14	11, 13	syl 17	. . . . . . . . . . . . . . . 16 ⊢ (𝜑 → 𝑈 ⊆ (Base‘𝑊))
15		lindsun.n	. . . . . . . . . . . . . . . . 17 ⊢ 𝑁 = (LSpan‘𝑊)
16	12, 15	lspssv 20830	. . . . . . . . . . . . . . . 16 ⊢ ((𝑊 ∈ LMod ∧ 𝑈 ⊆ (Base‘𝑊)) → (𝑁‘𝑈) ⊆ (Base‘𝑊))
17	4, 14, 16	syl2anc 583	. . . . . . . . . . . . . . 15 ⊢ (𝜑 → (𝑁‘𝑈) ⊆ (Base‘𝑊))
18	17	ad3antrrr 727	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ 𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))) ∧ 𝑦 ∈ (𝑁‘𝑉)) ∧ (𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦)) → (𝑁‘𝑈) ⊆ (Base‘𝑊))
19		difssd 4127	. . . . . . . . . . . . . . . . 17 ⊢ (𝜑 → (𝑈 ∖ {𝐶}) ⊆ 𝑈)
20	12, 15	lspss 20831	. . . . . . . . . . . . . . . . 17 ⊢ ((𝑊 ∈ LMod ∧ 𝑈 ⊆ (Base‘𝑊) ∧ (𝑈 ∖ {𝐶}) ⊆ 𝑈) → (𝑁‘(𝑈 ∖ {𝐶})) ⊆ (𝑁‘𝑈))
21	4, 14, 19, 20	syl3anc 1368	. . . . . . . . . . . . . . . 16 ⊢ (𝜑 → (𝑁‘(𝑈 ∖ {𝐶})) ⊆ (𝑁‘𝑈))
22	21	ad3antrrr 727	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ 𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))) ∧ 𝑦 ∈ (𝑁‘𝑉)) ∧ (𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦)) → (𝑁‘(𝑈 ∖ {𝐶})) ⊆ (𝑁‘𝑈))
23		simpllr 773	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ 𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))) ∧ 𝑦 ∈ (𝑁‘𝑉)) ∧ (𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦)) → 𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶})))
24	22, 23	sseldd 3978	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ 𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))) ∧ 𝑦 ∈ (𝑁‘𝑉)) ∧ (𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦)) → 𝑥 ∈ (𝑁‘𝑈))
25	18, 24	sseldd 3978	. . . . . . . . . . . . 13 ⊢ ((((𝜑 ∧ 𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))) ∧ 𝑦 ∈ (𝑁‘𝑉)) ∧ (𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦)) → 𝑥 ∈ (Base‘𝑊))
26		lindsun.v	. . . . . . . . . . . . . . . . 17 ⊢ (𝜑 → 𝑉 ∈ (LIndS‘𝑊))
27	12	linds1 21705	. . . . . . . . . . . . . . . . 17 ⊢ (𝑉 ∈ (LIndS‘𝑊) → 𝑉 ⊆ (Base‘𝑊))
28	26, 27	syl 17	. . . . . . . . . . . . . . . 16 ⊢ (𝜑 → 𝑉 ⊆ (Base‘𝑊))
29	12, 15	lspssv 20830	. . . . . . . . . . . . . . . 16 ⊢ ((𝑊 ∈ LMod ∧ 𝑉 ⊆ (Base‘𝑊)) → (𝑁‘𝑉) ⊆ (Base‘𝑊))
30	4, 28, 29	syl2anc 583	. . . . . . . . . . . . . . 15 ⊢ (𝜑 → (𝑁‘𝑉) ⊆ (Base‘𝑊))
31	30	ad3antrrr 727	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ 𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))) ∧ 𝑦 ∈ (𝑁‘𝑉)) ∧ (𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦)) → (𝑁‘𝑉) ⊆ (Base‘𝑊))
32		simplr 766	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ 𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))) ∧ 𝑦 ∈ (𝑁‘𝑉)) ∧ (𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦)) → 𝑦 ∈ (𝑁‘𝑉))
33	31, 32	sseldd 3978	. . . . . . . . . . . . 13 ⊢ ((((𝜑 ∧ 𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))) ∧ 𝑦 ∈ (𝑁‘𝑉)) ∧ (𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦)) → 𝑦 ∈ (Base‘𝑊))
34		eqid 2726	. . . . . . . . . . . . . 14 ⊢ (+_g‘𝑊) = (+_g‘𝑊)
35	12, 34	ablcom 19719	. . . . . . . . . . . . 13 ⊢ ((𝑊 ∈ Abel ∧ 𝑥 ∈ (Base‘𝑊) ∧ 𝑦 ∈ (Base‘𝑊)) → (𝑥(+_g‘𝑊)𝑦) = (𝑦(+_g‘𝑊)𝑥))
36	10, 25, 33, 35	syl3anc 1368	. . . . . . . . . . . 12 ⊢ ((((𝜑 ∧ 𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))) ∧ 𝑦 ∈ (𝑁‘𝑉)) ∧ (𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦)) → (𝑥(+_g‘𝑊)𝑦) = (𝑦(+_g‘𝑊)𝑥))
37	1, 36	eqtr2d 2767	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ 𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))) ∧ 𝑦 ∈ (𝑁‘𝑉)) ∧ (𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦)) → (𝑦(+_g‘𝑊)𝑥) = (𝐾( ·_𝑠 ‘𝑊)𝐶))
38		lindsunlem.k	. . . . . . . . . . . . . 14 ⊢ (𝜑 → 𝐾 ∈ (𝐹 ∖ {𝑂}))
39	38	eldifad 3955	. . . . . . . . . . . . 13 ⊢ (𝜑 → 𝐾 ∈ 𝐹)
40		lindsunlem.c	. . . . . . . . . . . . . 14 ⊢ (𝜑 → 𝐶 ∈ 𝑈)
41	14, 40	sseldd 3978	. . . . . . . . . . . . 13 ⊢ (𝜑 → 𝐶 ∈ (Base‘𝑊))
42		eqid 2726	. . . . . . . . . . . . . 14 ⊢ (Scalar‘𝑊) = (Scalar‘𝑊)
43		eqid 2726	. . . . . . . . . . . . . 14 ⊢ ( ·_𝑠 ‘𝑊) = ( ·_𝑠 ‘𝑊)
44		lindsunlem.f	. . . . . . . . . . . . . 14 ⊢ 𝐹 = (Base‘(Scalar‘𝑊))
45	12, 42, 43, 44	lmodvscl 20724	. . . . . . . . . . . . 13 ⊢ ((𝑊 ∈ LMod ∧ 𝐾 ∈ 𝐹 ∧ 𝐶 ∈ (Base‘𝑊)) → (𝐾( ·_𝑠 ‘𝑊)𝐶) ∈ (Base‘𝑊))
46	4, 39, 41, 45	syl3anc 1368	. . . . . . . . . . . 12 ⊢ (𝜑 → (𝐾( ·_𝑠 ‘𝑊)𝐶) ∈ (Base‘𝑊))
47	46	ad3antrrr 727	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ 𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))) ∧ 𝑦 ∈ (𝑁‘𝑉)) ∧ (𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦)) → (𝐾( ·_𝑠 ‘𝑊)𝐶) ∈ (Base‘𝑊))
48		eqid 2726	. . . . . . . . . . . . . 14 ⊢ (-_g‘𝑊) = (-_g‘𝑊)
49	12, 34, 48	grpsubadd 18956	. . . . . . . . . . . . 13 ⊢ ((𝑊 ∈ Grp ∧ ((𝐾( ·_𝑠 ‘𝑊)𝐶) ∈ (Base‘𝑊) ∧ 𝑥 ∈ (Base‘𝑊) ∧ 𝑦 ∈ (Base‘𝑊))) → (((𝐾( ·_𝑠 ‘𝑊)𝐶)(-_g‘𝑊)𝑥) = 𝑦 ↔ (𝑦(+_g‘𝑊)𝑥) = (𝐾( ·_𝑠 ‘𝑊)𝐶)))
50	49	biimpar 477	. . . . . . . . . . . 12 ⊢ (((𝑊 ∈ Grp ∧ ((𝐾( ·_𝑠 ‘𝑊)𝐶) ∈ (Base‘𝑊) ∧ 𝑥 ∈ (Base‘𝑊) ∧ 𝑦 ∈ (Base‘𝑊))) ∧ (𝑦(+_g‘𝑊)𝑥) = (𝐾( ·_𝑠 ‘𝑊)𝐶)) → ((𝐾( ·_𝑠 ‘𝑊)𝐶)(-_g‘𝑊)𝑥) = 𝑦)
51	50	an32s 649	. . . . . . . . . . 11 ⊢ (((𝑊 ∈ Grp ∧ (𝑦(+_g‘𝑊)𝑥) = (𝐾( ·_𝑠 ‘𝑊)𝐶)) ∧ ((𝐾( ·_𝑠 ‘𝑊)𝐶) ∈ (Base‘𝑊) ∧ 𝑥 ∈ (Base‘𝑊) ∧ 𝑦 ∈ (Base‘𝑊))) → ((𝐾( ·_𝑠 ‘𝑊)𝐶)(-_g‘𝑊)𝑥) = 𝑦)
52	7, 37, 47, 25, 33, 51	syl23anc 1374	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ 𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))) ∧ 𝑦 ∈ (𝑁‘𝑉)) ∧ (𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦)) → ((𝐾( ·_𝑠 ‘𝑊)𝐶)(-_g‘𝑊)𝑥) = 𝑦)
53	4	ad3antrrr 727	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ 𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))) ∧ 𝑦 ∈ (𝑁‘𝑉)) ∧ (𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦)) → 𝑊 ∈ LMod)
54		eqid 2726	. . . . . . . . . . . . . 14 ⊢ (LSubSp‘𝑊) = (LSubSp‘𝑊)
55	12, 54, 15	lspcl 20823	. . . . . . . . . . . . 13 ⊢ ((𝑊 ∈ LMod ∧ 𝑈 ⊆ (Base‘𝑊)) → (𝑁‘𝑈) ∈ (LSubSp‘𝑊))
56	4, 14, 55	syl2anc 583	. . . . . . . . . . . 12 ⊢ (𝜑 → (𝑁‘𝑈) ∈ (LSubSp‘𝑊))
57	56	ad3antrrr 727	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ 𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))) ∧ 𝑦 ∈ (𝑁‘𝑉)) ∧ (𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦)) → (𝑁‘𝑈) ∈ (LSubSp‘𝑊))
58	39	ad3antrrr 727	. . . . . . . . . . . 12 ⊢ ((((𝜑 ∧ 𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))) ∧ 𝑦 ∈ (𝑁‘𝑉)) ∧ (𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦)) → 𝐾 ∈ 𝐹)
59	12, 15	lspssid 20832	. . . . . . . . . . . . . . 15 ⊢ ((𝑊 ∈ LMod ∧ 𝑈 ⊆ (Base‘𝑊)) → 𝑈 ⊆ (𝑁‘𝑈))
60	4, 14, 59	syl2anc 583	. . . . . . . . . . . . . 14 ⊢ (𝜑 → 𝑈 ⊆ (𝑁‘𝑈))
61	60, 40	sseldd 3978	. . . . . . . . . . . . 13 ⊢ (𝜑 → 𝐶 ∈ (𝑁‘𝑈))
62	61	ad3antrrr 727	. . . . . . . . . . . 12 ⊢ ((((𝜑 ∧ 𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))) ∧ 𝑦 ∈ (𝑁‘𝑉)) ∧ (𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦)) → 𝐶 ∈ (𝑁‘𝑈))
63	42, 43, 44, 54	lssvscl 20802	. . . . . . . . . . . 12 ⊢ (((𝑊 ∈ LMod ∧ (𝑁‘𝑈) ∈ (LSubSp‘𝑊)) ∧ (𝐾 ∈ 𝐹 ∧ 𝐶 ∈ (𝑁‘𝑈))) → (𝐾( ·_𝑠 ‘𝑊)𝐶) ∈ (𝑁‘𝑈))
64	53, 57, 58, 62, 63	syl22anc 836	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ 𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))) ∧ 𝑦 ∈ (𝑁‘𝑉)) ∧ (𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦)) → (𝐾( ·_𝑠 ‘𝑊)𝐶) ∈ (𝑁‘𝑈))
65	48, 54	lssvsubcl 20791	. . . . . . . . . . 11 ⊢ (((𝑊 ∈ LMod ∧ (𝑁‘𝑈) ∈ (LSubSp‘𝑊)) ∧ ((𝐾( ·_𝑠 ‘𝑊)𝐶) ∈ (𝑁‘𝑈) ∧ 𝑥 ∈ (𝑁‘𝑈))) → ((𝐾( ·_𝑠 ‘𝑊)𝐶)(-_g‘𝑊)𝑥) ∈ (𝑁‘𝑈))
66	53, 57, 64, 24, 65	syl22anc 836	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ 𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))) ∧ 𝑦 ∈ (𝑁‘𝑉)) ∧ (𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦)) → ((𝐾( ·_𝑠 ‘𝑊)𝐶)(-_g‘𝑊)𝑥) ∈ (𝑁‘𝑈))
67	52, 66	eqeltrrd 2828	. . . . . . . . 9 ⊢ ((((𝜑 ∧ 𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))) ∧ 𝑦 ∈ (𝑁‘𝑉)) ∧ (𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦)) → 𝑦 ∈ (𝑁‘𝑈))
68	67, 32	elind 4189	. . . . . . . 8 ⊢ ((((𝜑 ∧ 𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))) ∧ 𝑦 ∈ (𝑁‘𝑉)) ∧ (𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦)) → 𝑦 ∈ ((𝑁‘𝑈) ∩ (𝑁‘𝑉)))
69		lindsun.2	. . . . . . . . 9 ⊢ (𝜑 → ((𝑁‘𝑈) ∩ (𝑁‘𝑉)) = { 0 })
70	69	ad3antrrr 727	. . . . . . . 8 ⊢ ((((𝜑 ∧ 𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))) ∧ 𝑦 ∈ (𝑁‘𝑉)) ∧ (𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦)) → ((𝑁‘𝑈) ∩ (𝑁‘𝑉)) = { 0 })
71	68, 70	eleqtrd 2829	. . . . . . 7 ⊢ ((((𝜑 ∧ 𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))) ∧ 𝑦 ∈ (𝑁‘𝑉)) ∧ (𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦)) → 𝑦 ∈ { 0 })
72		elsni 4640	. . . . . . 7 ⊢ (𝑦 ∈ { 0 } → 𝑦 = 0 )
73	71, 72	syl 17	. . . . . 6 ⊢ ((((𝜑 ∧ 𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))) ∧ 𝑦 ∈ (𝑁‘𝑉)) ∧ (𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦)) → 𝑦 = 0 )
74	73	oveq2d 7421	. . . . 5 ⊢ ((((𝜑 ∧ 𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))) ∧ 𝑦 ∈ (𝑁‘𝑉)) ∧ (𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦)) → (𝑥(+_g‘𝑊)𝑦) = (𝑥(+_g‘𝑊) 0 ))
75		lindsun.0	. . . . . . 7 ⊢ 0 = (0_g‘𝑊)
76	12, 34, 75	grprid 18898	. . . . . 6 ⊢ ((𝑊 ∈ Grp ∧ 𝑥 ∈ (Base‘𝑊)) → (𝑥(+_g‘𝑊) 0 ) = 𝑥)
77	7, 25, 76	syl2anc 583	. . . . 5 ⊢ ((((𝜑 ∧ 𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))) ∧ 𝑦 ∈ (𝑁‘𝑉)) ∧ (𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦)) → (𝑥(+_g‘𝑊) 0 ) = 𝑥)
78	1, 74, 77	3eqtrd 2770	. . . 4 ⊢ ((((𝜑 ∧ 𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))) ∧ 𝑦 ∈ (𝑁‘𝑉)) ∧ (𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦)) → (𝐾( ·_𝑠 ‘𝑊)𝐶) = 𝑥)
79	78, 23	eqeltrd 2827	. . 3 ⊢ ((((𝜑 ∧ 𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))) ∧ 𝑦 ∈ (𝑁‘𝑉)) ∧ (𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦)) → (𝐾( ·_𝑠 ‘𝑊)𝐶) ∈ (𝑁‘(𝑈 ∖ {𝐶})))
80	40	ad3antrrr 727	. . . 4 ⊢ ((((𝜑 ∧ 𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))) ∧ 𝑦 ∈ (𝑁‘𝑉)) ∧ (𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦)) → 𝐶 ∈ 𝑈)
81	38	ad3antrrr 727	. . . 4 ⊢ ((((𝜑 ∧ 𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))) ∧ 𝑦 ∈ (𝑁‘𝑉)) ∧ (𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦)) → 𝐾 ∈ (𝐹 ∖ {𝑂}))
82	2	ad3antrrr 727	. . . . 5 ⊢ ((((𝜑 ∧ 𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))) ∧ 𝑦 ∈ (𝑁‘𝑉)) ∧ (𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦)) → 𝑊 ∈ LVec)
83	11	ad3antrrr 727	. . . . 5 ⊢ ((((𝜑 ∧ 𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))) ∧ 𝑦 ∈ (𝑁‘𝑉)) ∧ (𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦)) → 𝑈 ∈ (LIndS‘𝑊))
84		lindsunlem.o	. . . . . . 7 ⊢ 𝑂 = (0_g‘(Scalar‘𝑊))
85	12, 43, 15, 42, 44, 84	islinds2 21708	. . . . . 6 ⊢ (𝑊 ∈ LVec → (𝑈 ∈ (LIndS‘𝑊) ↔ (𝑈 ⊆ (Base‘𝑊) ∧ ∀𝑐 ∈ 𝑈 ∀𝑘 ∈ (𝐹 ∖ {𝑂}) ¬ (𝑘( ·_𝑠 ‘𝑊)𝑐) ∈ (𝑁‘(𝑈 ∖ {𝑐})))))
86	85	simplbda 499	. . . . 5 ⊢ ((𝑊 ∈ LVec ∧ 𝑈 ∈ (LIndS‘𝑊)) → ∀𝑐 ∈ 𝑈 ∀𝑘 ∈ (𝐹 ∖ {𝑂}) ¬ (𝑘( ·_𝑠 ‘𝑊)𝑐) ∈ (𝑁‘(𝑈 ∖ {𝑐})))
87	82, 83, 86	syl2anc 583	. . . 4 ⊢ ((((𝜑 ∧ 𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))) ∧ 𝑦 ∈ (𝑁‘𝑉)) ∧ (𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦)) → ∀𝑐 ∈ 𝑈 ∀𝑘 ∈ (𝐹 ∖ {𝑂}) ¬ (𝑘( ·_𝑠 ‘𝑊)𝑐) ∈ (𝑁‘(𝑈 ∖ {𝑐})))
88		oveq2 7413	. . . . . . 7 ⊢ (𝑐 = 𝐶 → (𝑘( ·_𝑠 ‘𝑊)𝑐) = (𝑘( ·_𝑠 ‘𝑊)𝐶))
89		sneq 4633	. . . . . . . . 9 ⊢ (𝑐 = 𝐶 → {𝑐} = {𝐶})
90	89	difeq2d 4117	. . . . . . . 8 ⊢ (𝑐 = 𝐶 → (𝑈 ∖ {𝑐}) = (𝑈 ∖ {𝐶}))
91	90	fveq2d 6889	. . . . . . 7 ⊢ (𝑐 = 𝐶 → (𝑁‘(𝑈 ∖ {𝑐})) = (𝑁‘(𝑈 ∖ {𝐶})))
92	88, 91	eleq12d 2821	. . . . . 6 ⊢ (𝑐 = 𝐶 → ((𝑘( ·_𝑠 ‘𝑊)𝑐) ∈ (𝑁‘(𝑈 ∖ {𝑐})) ↔ (𝑘( ·_𝑠 ‘𝑊)𝐶) ∈ (𝑁‘(𝑈 ∖ {𝐶}))))
93	92	notbid 318	. . . . 5 ⊢ (𝑐 = 𝐶 → (¬ (𝑘( ·_𝑠 ‘𝑊)𝑐) ∈ (𝑁‘(𝑈 ∖ {𝑐})) ↔ ¬ (𝑘( ·_𝑠 ‘𝑊)𝐶) ∈ (𝑁‘(𝑈 ∖ {𝐶}))))
94		oveq1 7412	. . . . . . 7 ⊢ (𝑘 = 𝐾 → (𝑘( ·_𝑠 ‘𝑊)𝐶) = (𝐾( ·_𝑠 ‘𝑊)𝐶))
95	94	eleq1d 2812	. . . . . 6 ⊢ (𝑘 = 𝐾 → ((𝑘( ·_𝑠 ‘𝑊)𝐶) ∈ (𝑁‘(𝑈 ∖ {𝐶})) ↔ (𝐾( ·_𝑠 ‘𝑊)𝐶) ∈ (𝑁‘(𝑈 ∖ {𝐶}))))
96	95	notbid 318	. . . . 5 ⊢ (𝑘 = 𝐾 → (¬ (𝑘( ·_𝑠 ‘𝑊)𝐶) ∈ (𝑁‘(𝑈 ∖ {𝐶})) ↔ ¬ (𝐾( ·_𝑠 ‘𝑊)𝐶) ∈ (𝑁‘(𝑈 ∖ {𝐶}))))
97	93, 96	rspc2va 3618	. . . 4 ⊢ (((𝐶 ∈ 𝑈 ∧ 𝐾 ∈ (𝐹 ∖ {𝑂})) ∧ ∀𝑐 ∈ 𝑈 ∀𝑘 ∈ (𝐹 ∖ {𝑂}) ¬ (𝑘( ·_𝑠 ‘𝑊)𝑐) ∈ (𝑁‘(𝑈 ∖ {𝑐}))) → ¬ (𝐾( ·_𝑠 ‘𝑊)𝐶) ∈ (𝑁‘(𝑈 ∖ {𝐶})))
98	80, 81, 87, 97	syl21anc 835	. . 3 ⊢ ((((𝜑 ∧ 𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))) ∧ 𝑦 ∈ (𝑁‘𝑉)) ∧ (𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦)) → ¬ (𝐾( ·_𝑠 ‘𝑊)𝐶) ∈ (𝑁‘(𝑈 ∖ {𝐶})))
99	79, 98	pm2.21fal 1555	. 2 ⊢ ((((𝜑 ∧ 𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))) ∧ 𝑦 ∈ (𝑁‘𝑉)) ∧ (𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦)) → ⊥)
100	14	ssdifssd 4137	. . . . 5 ⊢ (𝜑 → (𝑈 ∖ {𝐶}) ⊆ (Base‘𝑊))
101	12, 54, 15	lspcl 20823	. . . . 5 ⊢ ((𝑊 ∈ LMod ∧ (𝑈 ∖ {𝐶}) ⊆ (Base‘𝑊)) → (𝑁‘(𝑈 ∖ {𝐶})) ∈ (LSubSp‘𝑊))
102	4, 100, 101	syl2anc 583	. . . 4 ⊢ (𝜑 → (𝑁‘(𝑈 ∖ {𝐶})) ∈ (LSubSp‘𝑊))
103	54	lsssubg 20804	. . . 4 ⊢ ((𝑊 ∈ LMod ∧ (𝑁‘(𝑈 ∖ {𝐶})) ∈ (LSubSp‘𝑊)) → (𝑁‘(𝑈 ∖ {𝐶})) ∈ (SubGrp‘𝑊))
104	4, 102, 103	syl2anc 583	. . 3 ⊢ (𝜑 → (𝑁‘(𝑈 ∖ {𝐶})) ∈ (SubGrp‘𝑊))
105	12, 54, 15	lspcl 20823	. . . . 5 ⊢ ((𝑊 ∈ LMod ∧ 𝑉 ⊆ (Base‘𝑊)) → (𝑁‘𝑉) ∈ (LSubSp‘𝑊))
106	4, 28, 105	syl2anc 583	. . . 4 ⊢ (𝜑 → (𝑁‘𝑉) ∈ (LSubSp‘𝑊))
107	54	lsssubg 20804	. . . 4 ⊢ ((𝑊 ∈ LMod ∧ (𝑁‘𝑉) ∈ (LSubSp‘𝑊)) → (𝑁‘𝑉) ∈ (SubGrp‘𝑊))
108	4, 106, 107	syl2anc 583	. . 3 ⊢ (𝜑 → (𝑁‘𝑉) ∈ (SubGrp‘𝑊))
109		lindsunlem.1	. . . 4 ⊢ (𝜑 → (𝐾( ·_𝑠 ‘𝑊)𝐶) ∈ (𝑁‘((𝑈 ∪ 𝑉) ∖ {𝐶})))
110		eqid 2726	. . . . . . 7 ⊢ (LSSum‘𝑊) = (LSSum‘𝑊)
111	12, 15, 110	lsmsp2 20935	. . . . . 6 ⊢ ((𝑊 ∈ LMod ∧ (𝑈 ∖ {𝐶}) ⊆ (Base‘𝑊) ∧ 𝑉 ⊆ (Base‘𝑊)) → ((𝑁‘(𝑈 ∖ {𝐶}))(LSSum‘𝑊)(𝑁‘𝑉)) = (𝑁‘((𝑈 ∖ {𝐶}) ∪ 𝑉)))
112	4, 100, 28, 111	syl3anc 1368	. . . . 5 ⊢ (𝜑 → ((𝑁‘(𝑈 ∖ {𝐶}))(LSSum‘𝑊)(𝑁‘𝑉)) = (𝑁‘((𝑈 ∖ {𝐶}) ∪ 𝑉)))
113	61	adantr 480	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝐶 ∈ 𝑉) → 𝐶 ∈ (𝑁‘𝑈))
114	12, 15	lspssid 20832	. . . . . . . . . . . . . . 15 ⊢ ((𝑊 ∈ LMod ∧ 𝑉 ⊆ (Base‘𝑊)) → 𝑉 ⊆ (𝑁‘𝑉))
115	4, 28, 114	syl2anc 583	. . . . . . . . . . . . . 14 ⊢ (𝜑 → 𝑉 ⊆ (𝑁‘𝑉))
116	115	sselda 3977	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝐶 ∈ 𝑉) → 𝐶 ∈ (𝑁‘𝑉))
117	113, 116	elind 4189	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝐶 ∈ 𝑉) → 𝐶 ∈ ((𝑁‘𝑈) ∩ (𝑁‘𝑉)))
118	69	adantr 480	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝐶 ∈ 𝑉) → ((𝑁‘𝑈) ∩ (𝑁‘𝑉)) = { 0 })
119	117, 118	eleqtrd 2829	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝐶 ∈ 𝑉) → 𝐶 ∈ { 0 })
120		elsni 4640	. . . . . . . . . . 11 ⊢ (𝐶 ∈ { 0 } → 𝐶 = 0 )
121	119, 120	syl 17	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝐶 ∈ 𝑉) → 𝐶 = 0 )
122	75	0nellinds 32989	. . . . . . . . . . . . . 14 ⊢ ((𝑊 ∈ LVec ∧ 𝑈 ∈ (LIndS‘𝑊)) → ¬ 0 ∈ 𝑈)
123	2, 11, 122	syl2anc 583	. . . . . . . . . . . . 13 ⊢ (𝜑 → ¬ 0 ∈ 𝑈)
124		nelne2 3034	. . . . . . . . . . . . 13 ⊢ ((𝐶 ∈ 𝑈 ∧ ¬ 0 ∈ 𝑈) → 𝐶 ≠ 0 )
125	40, 123, 124	syl2anc 583	. . . . . . . . . . . 12 ⊢ (𝜑 → 𝐶 ≠ 0 )
126	125	adantr 480	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝐶 ∈ 𝑉) → 𝐶 ≠ 0 )
127	126	neneqd 2939	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝐶 ∈ 𝑉) → ¬ 𝐶 = 0 )
128	121, 127	pm2.65da 814	. . . . . . . . 9 ⊢ (𝜑 → ¬ 𝐶 ∈ 𝑉)
129		disjsn 4710	. . . . . . . . 9 ⊢ ((𝑉 ∩ {𝐶}) = ∅ ↔ ¬ 𝐶 ∈ 𝑉)
130	128, 129	sylibr 233	. . . . . . . 8 ⊢ (𝜑 → (𝑉 ∩ {𝐶}) = ∅)
131		undif4 4461	. . . . . . . 8 ⊢ ((𝑉 ∩ {𝐶}) = ∅ → (𝑉 ∪ (𝑈 ∖ {𝐶})) = ((𝑉 ∪ 𝑈) ∖ {𝐶}))
132	130, 131	syl 17	. . . . . . 7 ⊢ (𝜑 → (𝑉 ∪ (𝑈 ∖ {𝐶})) = ((𝑉 ∪ 𝑈) ∖ {𝐶}))
133		uncom 4148	. . . . . . 7 ⊢ ((𝑈 ∖ {𝐶}) ∪ 𝑉) = (𝑉 ∪ (𝑈 ∖ {𝐶}))
134		uncom 4148	. . . . . . . 8 ⊢ (𝑈 ∪ 𝑉) = (𝑉 ∪ 𝑈)
135	134	difeq1i 4113	. . . . . . 7 ⊢ ((𝑈 ∪ 𝑉) ∖ {𝐶}) = ((𝑉 ∪ 𝑈) ∖ {𝐶})
136	132, 133, 135	3eqtr4g 2791	. . . . . 6 ⊢ (𝜑 → ((𝑈 ∖ {𝐶}) ∪ 𝑉) = ((𝑈 ∪ 𝑉) ∖ {𝐶}))
137	136	fveq2d 6889	. . . . 5 ⊢ (𝜑 → (𝑁‘((𝑈 ∖ {𝐶}) ∪ 𝑉)) = (𝑁‘((𝑈 ∪ 𝑉) ∖ {𝐶})))
138	112, 137	eqtrd 2766	. . . 4 ⊢ (𝜑 → ((𝑁‘(𝑈 ∖ {𝐶}))(LSSum‘𝑊)(𝑁‘𝑉)) = (𝑁‘((𝑈 ∪ 𝑉) ∖ {𝐶})))
139	109, 138	eleqtrrd 2830	. . 3 ⊢ (𝜑 → (𝐾( ·_𝑠 ‘𝑊)𝐶) ∈ ((𝑁‘(𝑈 ∖ {𝐶}))(LSSum‘𝑊)(𝑁‘𝑉)))
140	34, 110	lsmelval 19569	. . . 4 ⊢ (((𝑁‘(𝑈 ∖ {𝐶})) ∈ (SubGrp‘𝑊) ∧ (𝑁‘𝑉) ∈ (SubGrp‘𝑊)) → ((𝐾( ·_𝑠 ‘𝑊)𝐶) ∈ ((𝑁‘(𝑈 ∖ {𝐶}))(LSSum‘𝑊)(𝑁‘𝑉)) ↔ ∃𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))∃𝑦 ∈ (𝑁‘𝑉)(𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦)))
141	140	biimpa 476	. . 3 ⊢ ((((𝑁‘(𝑈 ∖ {𝐶})) ∈ (SubGrp‘𝑊) ∧ (𝑁‘𝑉) ∈ (SubGrp‘𝑊)) ∧ (𝐾( ·_𝑠 ‘𝑊)𝐶) ∈ ((𝑁‘(𝑈 ∖ {𝐶}))(LSSum‘𝑊)(𝑁‘𝑉))) → ∃𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))∃𝑦 ∈ (𝑁‘𝑉)(𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦))
142	104, 108, 139, 141	syl21anc 835	. 2 ⊢ (𝜑 → ∃𝑥 ∈ (𝑁‘(𝑈 ∖ {𝐶}))∃𝑦 ∈ (𝑁‘𝑉)(𝐾( ·_𝑠 ‘𝑊)𝐶) = (𝑥(+_g‘𝑊)𝑦))
143	99, 142	r19.29vva 3207	1 ⊢ (𝜑 → ⊥)

Colors of variables: wff setvar class

Syntax hints: ¬ wn 3 → wi 4 ∧ wa 395 ∧ w3a 1084 = wceq 1533 ⊥wfal 1545 ∈ wcel 2098 ≠ wne 2934 ∀wral 3055 ∃wrex 3064 ∖ cdif 3940 ∪ cun 3941 ∩ cin 3942 ⊆ wss 3943 ∅c0 4317 {csn 4623 ‘cfv 6537 (class class class)co 7405 Basecbs 17153 +_gcplusg 17206 Scalarcsca 17209 ·_𝑠 cvsca 17210 0_gc0g 17394 Grpcgrp 18863 -_gcsg 18865 SubGrpcsubg 19047 LSSumclsm 19554 Abelcabl 19701 LModclmod 20706 LSubSpclss 20778 LSpanclspn 20818 LVecclvec 20950 LIndSclinds 21700

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1789 ax-4 1803 ax-5 1905 ax-6 1963 ax-7 2003 ax-8 2100 ax-9 2108 ax-10 2129 ax-11 2146 ax-12 2163 ax-ext 2697 ax-rep 5278 ax-sep 5292 ax-nul 5299 ax-pow 5356 ax-pr 5420 ax-un 7722 ax-cnex 11168 ax-resscn 11169 ax-1cn 11170 ax-icn 11171 ax-addcl 11172 ax-addrcl 11173 ax-mulcl 11174 ax-mulrcl 11175 ax-mulcom 11176 ax-addass 11177 ax-mulass 11178 ax-distr 11179 ax-i2m1 11180 ax-1ne0 11181 ax-1rid 11182 ax-rnegex 11183 ax-rrecex 11184 ax-cnre 11185 ax-pre-lttri 11186 ax-pre-lttrn 11187 ax-pre-ltadd 11188 ax-pre-mulgt0 11189

This theorem depends on definitions: df-bi 206 df-an 396 df-or 845 df-3or 1085 df-3an 1086 df-tru 1536 df-fal 1546 df-ex 1774 df-nf 1778 df-sb 2060 df-mo 2528 df-eu 2557 df-clab 2704 df-cleq 2718 df-clel 2804 df-nfc 2879 df-ne 2935 df-nel 3041 df-ral 3056 df-rex 3065 df-rmo 3370 df-reu 3371 df-rab 3427 df-v 3470 df-sbc 3773 df-csb 3889 df-dif 3946 df-un 3948 df-in 3950 df-ss 3960 df-pss 3962 df-nul 4318 df-if 4524 df-pw 4599 df-sn 4624 df-pr 4626 df-op 4630 df-uni 4903 df-int 4944 df-iun 4992 df-br 5142 df-opab 5204 df-mpt 5225 df-tr 5259 df-id 5567 df-eprel 5573 df-po 5581 df-so 5582 df-fr 5624 df-we 5626 df-xp 5675 df-rel 5676 df-cnv 5677 df-co 5678 df-dm 5679 df-rn 5680 df-res 5681 df-ima 5682 df-pred 6294 df-ord 6361 df-on 6362 df-lim 6363 df-suc 6364 df-iota 6489 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-riota 7361 df-ov 7408 df-oprab 7409 df-mpo 7410 df-om 7853 df-1st 7974 df-2nd 7975 df-tpos 8212 df-frecs 8267 df-wrecs 8298 df-recs 8372 df-rdg 8411 df-er 8705 df-en 8942 df-dom 8943 df-sdom 8944 df-pnf 11254 df-mnf 11255 df-xr 11256 df-ltxr 11257 df-le 11258 df-sub 11450 df-neg 11451 df-nn 12217 df-2 12279 df-3 12280 df-sets 17106 df-slot 17124 df-ndx 17136 df-base 17154 df-ress 17183 df-plusg 17219 df-mulr 17220 df-0g 17396 df-mgm 18573 df-sgrp 18652 df-mnd 18668 df-submnd 18714 df-grp 18866 df-minusg 18867 df-sbg 18868 df-subg 19050 df-cntz 19233 df-lsm 19556 df-cmn 19702 df-abl 19703 df-mgp 20040 df-rng 20058 df-ur 20087 df-ring 20140 df-oppr 20236 df-dvdsr 20259 df-unit 20260 df-drng 20589 df-lmod 20708 df-lss 20779 df-lsp 20819 df-lvec 20951 df-lindf 21701 df-linds 21702

This theorem is referenced by: lindsun 33228

W3C validator