lindsenlbs - Mathbox for Brendan Leahy

	Mathbox for Brendan Leahy		< Previous Next > Nearby theorems
Mirrors > Home > MPE Home > Th. List > Mathboxes > lindsenlbs		Structured version Visualization version GIF version

Theorem lindsenlbs 38111

Description: A maximal linearly independent set in a free module of finite dimension over a division ring is a basis. (Contributed by Brendan Leahy, 2-Jun-2021.)

**Assertion**
Ref	Expression
lindsenlbs	⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑋 ≈ 𝐼) → 𝑋 ∈ (LBasis‘(𝑅 freeLMod 𝐼)))

Proof of Theorem lindsenlbs Dummy variables 𝑥 𝑦 𝑧 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		simpl3 1207	. 2 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑋 ≈ 𝐼) → 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼)))
2		drngring 20782	. . . . . . 7 ⊢ (𝑅 ∈ DivRing → 𝑅 ∈ Ring)
3		eqid 2762	. . . . . . . 8 ⊢ (𝑅 freeLMod 𝐼) = (𝑅 freeLMod 𝐼)
4	3	frlmlmod 21798	. . . . . . 7 ⊢ ((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) → (𝑅 freeLMod 𝐼) ∈ LMod)
5	2, 4	sylan 589	. . . . . 6 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) → (𝑅 freeLMod 𝐼) ∈ LMod)
6		eqid 2762	. . . . . . 7 ⊢ (Base‘(𝑅 freeLMod 𝐼)) = (Base‘(𝑅 freeLMod 𝐼))
7	6	linds1 21859	. . . . . 6 ⊢ (𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼)) → 𝑋 ⊆ (Base‘(𝑅 freeLMod 𝐼)))
8		eqid 2762	. . . . . . 7 ⊢ (LSpan‘(𝑅 freeLMod 𝐼)) = (LSpan‘(𝑅 freeLMod 𝐼))
9	6, 8	lspssv 21047	. . . . . 6 ⊢ (((𝑅 freeLMod 𝐼) ∈ LMod ∧ 𝑋 ⊆ (Base‘(𝑅 freeLMod 𝐼))) → ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋) ⊆ (Base‘(𝑅 freeLMod 𝐼)))
10	5, 7, 9	syl2an 605	. . . . 5 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) → ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋) ⊆ (Base‘(𝑅 freeLMod 𝐼)))
11	10	3impa 1122	. . . 4 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) → ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋) ⊆ (Base‘(𝑅 freeLMod 𝐼)))
12	11	adantr 484	. . 3 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑋 ≈ 𝐼) → ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋) ⊆ (Base‘(𝑅 freeLMod 𝐼)))
13		bren2 8964	. . . . . . 7 ⊢ (𝑋 ≈ 𝐼 ↔ (𝑋 ≼ 𝐼 ∧ ¬ 𝑋 ≺ 𝐼))
14	13	simprbi 501	. . . . . 6 ⊢ (𝑋 ≈ 𝐼 → ¬ 𝑋 ≺ 𝐼)
15		snfi 9024	. . . . . . . . . . . 12 ⊢ {𝑦} ∈ Fin
16		simp2 1150	. . . . . . . . . . . . 13 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) → 𝐼 ∈ Fin)
17		lindsdom 38110	. . . . . . . . . . . . 13 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) → 𝑋 ≼ 𝐼)
18		domfi 9157	. . . . . . . . . . . . 13 ⊢ ((𝐼 ∈ Fin ∧ 𝑋 ≼ 𝐼) → 𝑋 ∈ Fin)
19	16, 17, 18	syl2anc 593	. . . . . . . . . . . 12 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) → 𝑋 ∈ Fin)
20		unfi 9139	. . . . . . . . . . . 12 ⊢ (({𝑦} ∈ Fin ∧ 𝑋 ∈ Fin) → ({𝑦} ∪ 𝑋) ∈ Fin)
21	15, 19, 20	sylancr 596	. . . . . . . . . . 11 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) → ({𝑦} ∪ 𝑋) ∈ Fin)
22	21	adantr 484	. . . . . . . . . 10 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) → ({𝑦} ∪ 𝑋) ∈ Fin)
23		vex 3458	. . . . . . . . . . . . . 14 ⊢ 𝑦 ∈ V
24	23	snss 4743	. . . . . . . . . . . . 13 ⊢ (𝑦 ∈ 𝑋 ↔ {𝑦} ⊆ 𝑋)
25	6, 8	lspssid 21049	. . . . . . . . . . . . . . . 16 ⊢ (((𝑅 freeLMod 𝐼) ∈ LMod ∧ 𝑋 ⊆ (Base‘(𝑅 freeLMod 𝐼))) → 𝑋 ⊆ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋))
26	5, 7, 25	syl2an 605	. . . . . . . . . . . . . . 15 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) → 𝑋 ⊆ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋))
27	26	3impa 1122	. . . . . . . . . . . . . 14 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) → 𝑋 ⊆ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋))
28	27	sseld 3935	. . . . . . . . . . . . 13 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) → (𝑦 ∈ 𝑋 → 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)))
29	24, 28	biimtrrid 245	. . . . . . . . . . . 12 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) → ({𝑦} ⊆ 𝑋 → 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)))
30	29	con3dimp 412	. . . . . . . . . . 11 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) → ¬ {𝑦} ⊆ 𝑋)
31		nsspssun 4220	. . . . . . . . . . 11 ⊢ (¬ {𝑦} ⊆ 𝑋 ↔ 𝑋 ⊊ ({𝑦} ∪ 𝑋))
32	30, 31	sylib 220	. . . . . . . . . 10 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) → 𝑋 ⊊ ({𝑦} ∪ 𝑋))
33		php3 9177	. . . . . . . . . 10 ⊢ ((({𝑦} ∪ 𝑋) ∈ Fin ∧ 𝑋 ⊊ ({𝑦} ∪ 𝑋)) → 𝑋 ≺ ({𝑦} ∪ 𝑋))
34	22, 32, 33	syl2anc 593	. . . . . . . . 9 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) → 𝑋 ≺ ({𝑦} ∪ 𝑋))
35	34	adantrl 726	. . . . . . . 8 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ (𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼)) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋))) → 𝑋 ≺ ({𝑦} ∪ 𝑋))
36		simpl1 1205	. . . . . . . . 9 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ (𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼)) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋))) → 𝑅 ∈ DivRing)
37		simpl2 1206	. . . . . . . . 9 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ (𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼)) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋))) → 𝐼 ∈ Fin)
38		snssi 4744	. . . . . . . . . . . 12 ⊢ (𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼)) → {𝑦} ⊆ (Base‘(𝑅 freeLMod 𝐼)))
39	38	adantr 484	. . . . . . . . . . 11 ⊢ ((𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼)) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) → {𝑦} ⊆ (Base‘(𝑅 freeLMod 𝐼)))
40	7	3ad2ant3 1148	. . . . . . . . . . 11 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) → 𝑋 ⊆ (Base‘(𝑅 freeLMod 𝐼)))
41		unss 4142	. . . . . . . . . . . 12 ⊢ (({𝑦} ⊆ (Base‘(𝑅 freeLMod 𝐼)) ∧ 𝑋 ⊆ (Base‘(𝑅 freeLMod 𝐼))) ↔ ({𝑦} ∪ 𝑋) ⊆ (Base‘(𝑅 freeLMod 𝐼)))
42	41	biimpi 218	. . . . . . . . . . 11 ⊢ (({𝑦} ⊆ (Base‘(𝑅 freeLMod 𝐼)) ∧ 𝑋 ⊆ (Base‘(𝑅 freeLMod 𝐼))) → ({𝑦} ∪ 𝑋) ⊆ (Base‘(𝑅 freeLMod 𝐼)))
43	39, 40, 42	syl2anr 606	. . . . . . . . . 10 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ (𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼)) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋))) → ({𝑦} ∪ 𝑋) ⊆ (Base‘(𝑅 freeLMod 𝐼)))
44		simpr 488	. . . . . . . . . . . . . . . 16 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) → ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋))
45	28	con3dimp 412	. . . . . . . . . . . . . . . . . 18 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) → ¬ 𝑦 ∈ 𝑋)
46		difsn 4758	. . . . . . . . . . . . . . . . . 18 ⊢ (¬ 𝑦 ∈ 𝑋 → (𝑋 ∖ {𝑦}) = 𝑋)
47	45, 46	syl 17	. . . . . . . . . . . . . . . . 17 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) → (𝑋 ∖ {𝑦}) = 𝑋)
48	47	fveq2d 6871	. . . . . . . . . . . . . . . 16 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) → ((LSpan‘(𝑅 freeLMod 𝐼))‘(𝑋 ∖ {𝑦})) = ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋))
49	44, 48	neleqtrrd 2885	. . . . . . . . . . . . . . 15 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) → ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(𝑋 ∖ {𝑦})))
50	49	adantlr 725	. . . . . . . . . . . . . 14 ⊢ ((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) → ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(𝑋 ∖ {𝑦})))
51		difsnid 4768	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (𝑧 ∈ 𝑋 → ((𝑋 ∖ {𝑧}) ∪ {𝑧}) = 𝑋)
52	51	fveq2d 6871	. . . . . . . . . . . . . . . . . . . 20 ⊢ (𝑧 ∈ 𝑋 → ((LSpan‘(𝑅 freeLMod 𝐼))‘((𝑋 ∖ {𝑧}) ∪ {𝑧})) = ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋))
53	52	eleq2d 2848	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝑧 ∈ 𝑋 → (𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘((𝑋 ∖ {𝑧}) ∪ {𝑧})) ↔ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)))
54	53	notbid 320	. . . . . . . . . . . . . . . . . 18 ⊢ (𝑧 ∈ 𝑋 → (¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘((𝑋 ∖ {𝑧}) ∪ {𝑧})) ↔ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)))
55	54	biimparc 483	. . . . . . . . . . . . . . . . 17 ⊢ ((¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋) ∧ 𝑧 ∈ 𝑋) → ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘((𝑋 ∖ {𝑧}) ∪ {𝑧})))
56	55	adantll 724	. . . . . . . . . . . . . . . 16 ⊢ (((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) ∧ 𝑧 ∈ 𝑋) → ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘((𝑋 ∖ {𝑧}) ∪ {𝑧})))
57	3	frlmsca 21802	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) → 𝑅 = (Scalar‘(𝑅 freeLMod 𝐼)))
58		simpl 486	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) → 𝑅 ∈ DivRing)
59	57, 58	eqeltrrd 2863	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) → (Scalar‘(𝑅 freeLMod 𝐼)) ∈ DivRing)
60		eqid 2762	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (Scalar‘(𝑅 freeLMod 𝐼)) = (Scalar‘(𝑅 freeLMod 𝐼))
61	60	islvec 21168	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝑅 freeLMod 𝐼) ∈ LVec ↔ ((𝑅 freeLMod 𝐼) ∈ LMod ∧ (Scalar‘(𝑅 freeLMod 𝐼)) ∈ DivRing))
62	5, 59, 61	sylanbrc 592	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) → (𝑅 freeLMod 𝐼) ∈ LVec)
63	62	3adant3 1145	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) → (𝑅 freeLMod 𝐼) ∈ LVec)
64	63	ad4antr 742	. . . . . . . . . . . . . . . . 17 ⊢ ((((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) ∧ 𝑧 ∈ 𝑋) ∧ 𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧}))) → (𝑅 freeLMod 𝐼) ∈ LVec)
65	7	ssdifssd 4100	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼)) → (𝑋 ∖ {𝑧}) ⊆ (Base‘(𝑅 freeLMod 𝐼)))
66	65	3ad2ant3 1148	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) → (𝑋 ∖ {𝑧}) ⊆ (Base‘(𝑅 freeLMod 𝐼)))
67	66	ad4antr 742	. . . . . . . . . . . . . . . . 17 ⊢ ((((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) ∧ 𝑧 ∈ 𝑋) ∧ 𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧}))) → (𝑋 ∖ {𝑧}) ⊆ (Base‘(𝑅 freeLMod 𝐼)))
68		simp-4r 793	. . . . . . . . . . . . . . . . 17 ⊢ ((((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) ∧ 𝑧 ∈ 𝑋) ∧ 𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧}))) → 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼)))
69		difundir 4243	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (({𝑦} ∪ 𝑋) ∖ {𝑧}) = (({𝑦} ∖ {𝑧}) ∪ (𝑋 ∖ {𝑧}))
70	69	equncomi 4113	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (({𝑦} ∪ 𝑋) ∖ {𝑧}) = ((𝑋 ∖ {𝑧}) ∪ ({𝑦} ∖ {𝑧}))
71		elsni 4599	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 ⊢ (𝑧 ∈ {𝑦} → 𝑧 = 𝑦)
72	71	eleq1d 2847	. . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 ⊢ (𝑧 ∈ {𝑦} → (𝑧 ∈ 𝑋 ↔ 𝑦 ∈ 𝑋))
73	72	notbid 320	. . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ⊢ (𝑧 ∈ {𝑦} → (¬ 𝑧 ∈ 𝑋 ↔ ¬ 𝑦 ∈ 𝑋))
74	45, 73	syl5ibrcom 249	. . . . . . . . . . . . . . . . . . . . . . . . . . 27 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) → (𝑧 ∈ {𝑦} → ¬ 𝑧 ∈ 𝑋))
75	74	con2d 134	. . . . . . . . . . . . . . . . . . . . . . . . . 26 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) → (𝑧 ∈ 𝑋 → ¬ 𝑧 ∈ {𝑦}))
76	75	imp 410	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ ((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) ∧ 𝑧 ∈ 𝑋) → ¬ 𝑧 ∈ {𝑦})
77		difsn 4758	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ (¬ 𝑧 ∈ {𝑦} → ({𝑦} ∖ {𝑧}) = {𝑦})
78	76, 77	syl 17	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) ∧ 𝑧 ∈ 𝑋) → ({𝑦} ∖ {𝑧}) = {𝑦})
79	78	uneq2d 4121	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) ∧ 𝑧 ∈ 𝑋) → ((𝑋 ∖ {𝑧}) ∪ ({𝑦} ∖ {𝑧})) = ((𝑋 ∖ {𝑧}) ∪ {𝑦}))
80	70, 79	eqtrid 2809	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) ∧ 𝑧 ∈ 𝑋) → (({𝑦} ∪ 𝑋) ∖ {𝑧}) = ((𝑋 ∖ {𝑧}) ∪ {𝑦}))
81	80	fveq2d 6871	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) ∧ 𝑧 ∈ 𝑋) → ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧})) = ((LSpan‘(𝑅 freeLMod 𝐼))‘((𝑋 ∖ {𝑧}) ∪ {𝑦})))
82	81	eleq2d 2848	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) ∧ 𝑧 ∈ 𝑋) → (𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧})) ↔ 𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘((𝑋 ∖ {𝑧}) ∪ {𝑦}))))
83	82	adantllr 729	. . . . . . . . . . . . . . . . . . 19 ⊢ (((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) ∧ 𝑧 ∈ 𝑋) → (𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧})) ↔ 𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘((𝑋 ∖ {𝑧}) ∪ {𝑦}))))
84	83	biimpa 480	. . . . . . . . . . . . . . . . . 18 ⊢ ((((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) ∧ 𝑧 ∈ 𝑋) ∧ 𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧}))) → 𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘((𝑋 ∖ {𝑧}) ∪ {𝑦})))
85		drngnzr 20794	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ (𝑅 ∈ DivRing → 𝑅 ∈ NzRing)
86	85	adantr 484	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) → 𝑅 ∈ NzRing)
87	57, 86	eqeltrrd 2863	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) → (Scalar‘(𝑅 freeLMod 𝐼)) ∈ NzRing)
88	5, 87	jca 519	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) → ((𝑅 freeLMod 𝐼) ∈ LMod ∧ (Scalar‘(𝑅 freeLMod 𝐼)) ∈ NzRing))
89	88	anim1i 624	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) → (((𝑅 freeLMod 𝐼) ∈ LMod ∧ (Scalar‘(𝑅 freeLMod 𝐼)) ∈ NzRing) ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))))
90	89	3impa 1122	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) → (((𝑅 freeLMod 𝐼) ∈ LMod ∧ (Scalar‘(𝑅 freeLMod 𝐼)) ∈ NzRing) ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))))
91	8, 60	lindsind2 21868	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((((𝑅 freeLMod 𝐼) ∈ LMod ∧ (Scalar‘(𝑅 freeLMod 𝐼)) ∈ NzRing) ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼)) ∧ 𝑧 ∈ 𝑋) → ¬ 𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(𝑋 ∖ {𝑧})))
92	91	3expa 1131	. . . . . . . . . . . . . . . . . . . 20 ⊢ (((((𝑅 freeLMod 𝐼) ∈ LMod ∧ (Scalar‘(𝑅 freeLMod 𝐼)) ∈ NzRing) ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑧 ∈ 𝑋) → ¬ 𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(𝑋 ∖ {𝑧})))
93	90, 92	sylan 589	. . . . . . . . . . . . . . . . . . 19 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑧 ∈ 𝑋) → ¬ 𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(𝑋 ∖ {𝑧})))
94	93	ad5ant14 767	. . . . . . . . . . . . . . . . . 18 ⊢ ((((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) ∧ 𝑧 ∈ 𝑋) ∧ 𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧}))) → ¬ 𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(𝑋 ∖ {𝑧})))
95	84, 94	eldifd 3915	. . . . . . . . . . . . . . . . 17 ⊢ ((((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) ∧ 𝑧 ∈ 𝑋) ∧ 𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧}))) → 𝑧 ∈ (((LSpan‘(𝑅 freeLMod 𝐼))‘((𝑋 ∖ {𝑧}) ∪ {𝑦})) ∖ ((LSpan‘(𝑅 freeLMod 𝐼))‘(𝑋 ∖ {𝑧}))))
96		eqid 2762	. . . . . . . . . . . . . . . . . 18 ⊢ (LSubSp‘(𝑅 freeLMod 𝐼)) = (LSubSp‘(𝑅 freeLMod 𝐼))
97	6, 96, 8	lspsolv 21210	. . . . . . . . . . . . . . . . 17 ⊢ (((𝑅 freeLMod 𝐼) ∈ LVec ∧ ((𝑋 ∖ {𝑧}) ⊆ (Base‘(𝑅 freeLMod 𝐼)) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼)) ∧ 𝑧 ∈ (((LSpan‘(𝑅 freeLMod 𝐼))‘((𝑋 ∖ {𝑧}) ∪ {𝑦})) ∖ ((LSpan‘(𝑅 freeLMod 𝐼))‘(𝑋 ∖ {𝑧}))))) → 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘((𝑋 ∖ {𝑧}) ∪ {𝑧})))
98	64, 67, 68, 95, 97	syl13anc 1391	. . . . . . . . . . . . . . . 16 ⊢ ((((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) ∧ 𝑧 ∈ 𝑋) ∧ 𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧}))) → 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘((𝑋 ∖ {𝑧}) ∪ {𝑧})))
99	56, 98	mtand 825	. . . . . . . . . . . . . . 15 ⊢ (((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) ∧ 𝑧 ∈ 𝑋) → ¬ 𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧})))
100	99	ralrimiva 3154	. . . . . . . . . . . . . 14 ⊢ ((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) → ∀𝑧 ∈ 𝑋 ¬ 𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧})))
101		ralunb 4149	. . . . . . . . . . . . . . 15 ⊢ (∀𝑧 ∈ ({𝑦} ∪ 𝑋) ¬ 𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧})) ↔ (∀𝑧 ∈ {𝑦} ¬ 𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧})) ∧ ∀𝑧 ∈ 𝑋 ¬ 𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧}))))
102		id 22	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝑧 = 𝑦 → 𝑧 = 𝑦)
103		sneq 4592	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (𝑧 = 𝑦 → {𝑧} = {𝑦})
104	103	difeq2d 4080	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (𝑧 = 𝑦 → (({𝑦} ∪ 𝑋) ∖ {𝑧}) = (({𝑦} ∪ 𝑋) ∖ {𝑦}))
105		uncom 4111	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ({𝑦} ∪ 𝑋) = (𝑋 ∪ {𝑦})
106	105	difeq1i 4076	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (({𝑦} ∪ 𝑋) ∖ {𝑦}) = ((𝑋 ∪ {𝑦}) ∖ {𝑦})
107		difun2 4435	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((𝑋 ∪ {𝑦}) ∖ {𝑦}) = (𝑋 ∖ {𝑦})
108	106, 107	eqtri 2785	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (({𝑦} ∪ 𝑋) ∖ {𝑦}) = (𝑋 ∖ {𝑦})
109	104, 108	eqtrdi 2813	. . . . . . . . . . . . . . . . . . . 20 ⊢ (𝑧 = 𝑦 → (({𝑦} ∪ 𝑋) ∖ {𝑧}) = (𝑋 ∖ {𝑦}))
110	109	fveq2d 6871	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝑧 = 𝑦 → ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧})) = ((LSpan‘(𝑅 freeLMod 𝐼))‘(𝑋 ∖ {𝑦})))
111	102, 110	eleq12d 2856	. . . . . . . . . . . . . . . . . 18 ⊢ (𝑧 = 𝑦 → (𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧})) ↔ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(𝑋 ∖ {𝑦}))))
112	111	notbid 320	. . . . . . . . . . . . . . . . 17 ⊢ (𝑧 = 𝑦 → (¬ 𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧})) ↔ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(𝑋 ∖ {𝑦}))))
113	23, 112	ralsn 4640	. . . . . . . . . . . . . . . 16 ⊢ (∀𝑧 ∈ {𝑦} ¬ 𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧})) ↔ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(𝑋 ∖ {𝑦})))
114	113	anbi1i 633	. . . . . . . . . . . . . . 15 ⊢ ((∀𝑧 ∈ {𝑦} ¬ 𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧})) ∧ ∀𝑧 ∈ 𝑋 ¬ 𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧}))) ↔ (¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(𝑋 ∖ {𝑦})) ∧ ∀𝑧 ∈ 𝑋 ¬ 𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧}))))
115	101, 114	bitri 277	. . . . . . . . . . . . . 14 ⊢ (∀𝑧 ∈ ({𝑦} ∪ 𝑋) ¬ 𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧})) ↔ (¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(𝑋 ∖ {𝑦})) ∧ ∀𝑧 ∈ 𝑋 ¬ 𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧}))))
116	50, 100, 115	sylanbrc 592	. . . . . . . . . . . . 13 ⊢ ((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) → ∀𝑧 ∈ ({𝑦} ∪ 𝑋) ¬ 𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧})))
117	116	ex 416	. . . . . . . . . . . 12 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) → (¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋) → ∀𝑧 ∈ ({𝑦} ∪ 𝑋) ¬ 𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧}))))
118	63	ad3antrrr 740	. . . . . . . . . . . . . . . . . . 19 ⊢ (((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) ∧ 𝑧 ∈ ({𝑦} ∪ 𝑋)) ∧ 𝑥 ∈ ((Base‘(Scalar‘(𝑅 freeLMod 𝐼))) ∖ {(0_g‘(Scalar‘(𝑅 freeLMod 𝐼)))})) → (𝑅 freeLMod 𝐼) ∈ LVec)
119		eldifsn 4746	. . . . . . . . . . . . . . . . . . . 20 ⊢ (𝑥 ∈ ((Base‘(Scalar‘(𝑅 freeLMod 𝐼))) ∖ {(0_g‘(Scalar‘(𝑅 freeLMod 𝐼)))}) ↔ (𝑥 ∈ (Base‘(Scalar‘(𝑅 freeLMod 𝐼))) ∧ 𝑥 ≠ (0_g‘(Scalar‘(𝑅 freeLMod 𝐼)))))
120	119	bilani 508	. . . . . . . . . . . . . . . . . . 19 ⊢ (((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) ∧ 𝑧 ∈ ({𝑦} ∪ 𝑋)) ∧ 𝑥 ∈ ((Base‘(Scalar‘(𝑅 freeLMod 𝐼))) ∖ {(0_g‘(Scalar‘(𝑅 freeLMod 𝐼)))})) → (𝑥 ∈ (Base‘(Scalar‘(𝑅 freeLMod 𝐼))) ∧ 𝑥 ≠ (0_g‘(Scalar‘(𝑅 freeLMod 𝐼)))))
121	38, 7, 42	syl2anr 606	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼)) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) → ({𝑦} ∪ 𝑋) ⊆ (Base‘(𝑅 freeLMod 𝐼)))
122	121	3ad2antl3 1201	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) → ({𝑦} ∪ 𝑋) ⊆ (Base‘(𝑅 freeLMod 𝐼)))
123	122	sselda 3936	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) ∧ 𝑧 ∈ ({𝑦} ∪ 𝑋)) → 𝑧 ∈ (Base‘(𝑅 freeLMod 𝐼)))
124	123	adantr 484	. . . . . . . . . . . . . . . . . . 19 ⊢ (((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) ∧ 𝑧 ∈ ({𝑦} ∪ 𝑋)) ∧ 𝑥 ∈ ((Base‘(Scalar‘(𝑅 freeLMod 𝐼))) ∖ {(0_g‘(Scalar‘(𝑅 freeLMod 𝐼)))})) → 𝑧 ∈ (Base‘(𝑅 freeLMod 𝐼)))
125		eqid 2762	. . . . . . . . . . . . . . . . . . . 20 ⊢ ( ·_𝑠 ‘(𝑅 freeLMod 𝐼)) = ( ·_𝑠 ‘(𝑅 freeLMod 𝐼))
126		eqid 2762	. . . . . . . . . . . . . . . . . . . 20 ⊢ (Base‘(Scalar‘(𝑅 freeLMod 𝐼))) = (Base‘(Scalar‘(𝑅 freeLMod 𝐼)))
127		eqid 2762	. . . . . . . . . . . . . . . . . . . 20 ⊢ (0_g‘(Scalar‘(𝑅 freeLMod 𝐼))) = (0_g‘(Scalar‘(𝑅 freeLMod 𝐼)))
128	6, 60, 125, 126, 127, 8	lspsnvs 21181	. . . . . . . . . . . . . . . . . . 19 ⊢ (((𝑅 freeLMod 𝐼) ∈ LVec ∧ (𝑥 ∈ (Base‘(Scalar‘(𝑅 freeLMod 𝐼))) ∧ 𝑥 ≠ (0_g‘(Scalar‘(𝑅 freeLMod 𝐼)))) ∧ 𝑧 ∈ (Base‘(𝑅 freeLMod 𝐼))) → ((LSpan‘(𝑅 freeLMod 𝐼))‘{(𝑥( ·_𝑠 ‘(𝑅 freeLMod 𝐼))𝑧)}) = ((LSpan‘(𝑅 freeLMod 𝐼))‘{𝑧}))
129	118, 120, 124, 128	syl3anc 1390	. . . . . . . . . . . . . . . . . 18 ⊢ (((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) ∧ 𝑧 ∈ ({𝑦} ∪ 𝑋)) ∧ 𝑥 ∈ ((Base‘(Scalar‘(𝑅 freeLMod 𝐼))) ∖ {(0_g‘(Scalar‘(𝑅 freeLMod 𝐼)))})) → ((LSpan‘(𝑅 freeLMod 𝐼))‘{(𝑥( ·_𝑠 ‘(𝑅 freeLMod 𝐼))𝑧)}) = ((LSpan‘(𝑅 freeLMod 𝐼))‘{𝑧}))
130	129	sseq1d 3967	. . . . . . . . . . . . . . . . 17 ⊢ (((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) ∧ 𝑧 ∈ ({𝑦} ∪ 𝑋)) ∧ 𝑥 ∈ ((Base‘(Scalar‘(𝑅 freeLMod 𝐼))) ∖ {(0_g‘(Scalar‘(𝑅 freeLMod 𝐼)))})) → (((LSpan‘(𝑅 freeLMod 𝐼))‘{(𝑥( ·_𝑠 ‘(𝑅 freeLMod 𝐼))𝑧)}) ⊆ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧})) ↔ ((LSpan‘(𝑅 freeLMod 𝐼))‘{𝑧}) ⊆ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧}))))
131	5	3adant3 1145	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) → (𝑅 freeLMod 𝐼) ∈ LMod)
132	131	ad3antrrr 740	. . . . . . . . . . . . . . . . . 18 ⊢ (((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) ∧ 𝑧 ∈ ({𝑦} ∪ 𝑋)) ∧ 𝑥 ∈ ((Base‘(Scalar‘(𝑅 freeLMod 𝐼))) ∖ {(0_g‘(Scalar‘(𝑅 freeLMod 𝐼)))})) → (𝑅 freeLMod 𝐼) ∈ LMod)
133		df-3an 1100	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ↔ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))))
134	121	ssdifssd 4100	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼)) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) → (({𝑦} ∪ 𝑋) ∖ {𝑧}) ⊆ (Base‘(𝑅 freeLMod 𝐼)))
135	6, 96, 8	lspcl 21040	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (((𝑅 freeLMod 𝐼) ∈ LMod ∧ (({𝑦} ∪ 𝑋) ∖ {𝑧}) ⊆ (Base‘(𝑅 freeLMod 𝐼))) → ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧})) ∈ (LSubSp‘(𝑅 freeLMod 𝐼)))
136	5, 134, 135	syl2an 605	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) ∧ (𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼)) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼)))) → ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧})) ∈ (LSubSp‘(𝑅 freeLMod 𝐼)))
137	136	anassrs 471	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) → ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧})) ∈ (LSubSp‘(𝑅 freeLMod 𝐼)))
138	133, 137	sylanb 590	. . . . . . . . . . . . . . . . . . 19 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) → ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧})) ∈ (LSubSp‘(𝑅 freeLMod 𝐼)))
139	138	ad2antrr 736	. . . . . . . . . . . . . . . . . 18 ⊢ (((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) ∧ 𝑧 ∈ ({𝑦} ∪ 𝑋)) ∧ 𝑥 ∈ ((Base‘(Scalar‘(𝑅 freeLMod 𝐼))) ∖ {(0_g‘(Scalar‘(𝑅 freeLMod 𝐼)))})) → ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧})) ∈ (LSubSp‘(𝑅 freeLMod 𝐼)))
140		eldifi 4084	. . . . . . . . . . . . . . . . . . . 20 ⊢ (𝑥 ∈ ((Base‘(Scalar‘(𝑅 freeLMod 𝐼))) ∖ {(0_g‘(Scalar‘(𝑅 freeLMod 𝐼)))}) → 𝑥 ∈ (Base‘(Scalar‘(𝑅 freeLMod 𝐼))))
141	140	adantl 485	. . . . . . . . . . . . . . . . . . 19 ⊢ (((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) ∧ 𝑧 ∈ ({𝑦} ∪ 𝑋)) ∧ 𝑥 ∈ ((Base‘(Scalar‘(𝑅 freeLMod 𝐼))) ∖ {(0_g‘(Scalar‘(𝑅 freeLMod 𝐼)))})) → 𝑥 ∈ (Base‘(Scalar‘(𝑅 freeLMod 𝐼))))
142	6, 60, 125, 126	lmodvscl 20942	. . . . . . . . . . . . . . . . . . 19 ⊢ (((𝑅 freeLMod 𝐼) ∈ LMod ∧ 𝑥 ∈ (Base‘(Scalar‘(𝑅 freeLMod 𝐼))) ∧ 𝑧 ∈ (Base‘(𝑅 freeLMod 𝐼))) → (𝑥( ·_𝑠 ‘(𝑅 freeLMod 𝐼))𝑧) ∈ (Base‘(𝑅 freeLMod 𝐼)))
143	132, 141, 124, 142	syl3anc 1390	. . . . . . . . . . . . . . . . . 18 ⊢ (((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) ∧ 𝑧 ∈ ({𝑦} ∪ 𝑋)) ∧ 𝑥 ∈ ((Base‘(Scalar‘(𝑅 freeLMod 𝐼))) ∖ {(0_g‘(Scalar‘(𝑅 freeLMod 𝐼)))})) → (𝑥( ·_𝑠 ‘(𝑅 freeLMod 𝐼))𝑧) ∈ (Base‘(𝑅 freeLMod 𝐼)))
144	6, 96, 8, 132, 139, 143	ellspsn5b 21059	. . . . . . . . . . . . . . . . 17 ⊢ (((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) ∧ 𝑧 ∈ ({𝑦} ∪ 𝑋)) ∧ 𝑥 ∈ ((Base‘(Scalar‘(𝑅 freeLMod 𝐼))) ∖ {(0_g‘(Scalar‘(𝑅 freeLMod 𝐼)))})) → ((𝑥( ·_𝑠 ‘(𝑅 freeLMod 𝐼))𝑧) ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧})) ↔ ((LSpan‘(𝑅 freeLMod 𝐼))‘{(𝑥( ·_𝑠 ‘(𝑅 freeLMod 𝐼))𝑧)}) ⊆ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧}))))
145	131	ad2antrr 736	. . . . . . . . . . . . . . . . . . 19 ⊢ ((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) ∧ 𝑧 ∈ ({𝑦} ∪ 𝑋)) → (𝑅 freeLMod 𝐼) ∈ LMod)
146	138	adantr 484	. . . . . . . . . . . . . . . . . . 19 ⊢ ((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) ∧ 𝑧 ∈ ({𝑦} ∪ 𝑋)) → ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧})) ∈ (LSubSp‘(𝑅 freeLMod 𝐼)))
147	6, 96, 8, 145, 146, 123	ellspsn5b 21059	. . . . . . . . . . . . . . . . . 18 ⊢ ((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) ∧ 𝑧 ∈ ({𝑦} ∪ 𝑋)) → (𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧})) ↔ ((LSpan‘(𝑅 freeLMod 𝐼))‘{𝑧}) ⊆ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧}))))
148	147	adantr 484	. . . . . . . . . . . . . . . . 17 ⊢ (((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) ∧ 𝑧 ∈ ({𝑦} ∪ 𝑋)) ∧ 𝑥 ∈ ((Base‘(Scalar‘(𝑅 freeLMod 𝐼))) ∖ {(0_g‘(Scalar‘(𝑅 freeLMod 𝐼)))})) → (𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧})) ↔ ((LSpan‘(𝑅 freeLMod 𝐼))‘{𝑧}) ⊆ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧}))))
149	130, 144, 148	3bitr4rd 314	. . . . . . . . . . . . . . . 16 ⊢ (((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) ∧ 𝑧 ∈ ({𝑦} ∪ 𝑋)) ∧ 𝑥 ∈ ((Base‘(Scalar‘(𝑅 freeLMod 𝐼))) ∖ {(0_g‘(Scalar‘(𝑅 freeLMod 𝐼)))})) → (𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧})) ↔ (𝑥( ·_𝑠 ‘(𝑅 freeLMod 𝐼))𝑧) ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧}))))
150	149	notbid 320	. . . . . . . . . . . . . . 15 ⊢ (((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) ∧ 𝑧 ∈ ({𝑦} ∪ 𝑋)) ∧ 𝑥 ∈ ((Base‘(Scalar‘(𝑅 freeLMod 𝐼))) ∖ {(0_g‘(Scalar‘(𝑅 freeLMod 𝐼)))})) → (¬ 𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧})) ↔ ¬ (𝑥( ·_𝑠 ‘(𝑅 freeLMod 𝐼))𝑧) ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧}))))
151	150	biimpd 231	. . . . . . . . . . . . . 14 ⊢ (((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) ∧ 𝑧 ∈ ({𝑦} ∪ 𝑋)) ∧ 𝑥 ∈ ((Base‘(Scalar‘(𝑅 freeLMod 𝐼))) ∖ {(0_g‘(Scalar‘(𝑅 freeLMod 𝐼)))})) → (¬ 𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧})) → ¬ (𝑥( ·_𝑠 ‘(𝑅 freeLMod 𝐼))𝑧) ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧}))))
152	151	ralrimdva 3162	. . . . . . . . . . . . 13 ⊢ ((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) ∧ 𝑧 ∈ ({𝑦} ∪ 𝑋)) → (¬ 𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧})) → ∀𝑥 ∈ ((Base‘(Scalar‘(𝑅 freeLMod 𝐼))) ∖ {(0_g‘(Scalar‘(𝑅 freeLMod 𝐼)))}) ¬ (𝑥( ·_𝑠 ‘(𝑅 freeLMod 𝐼))𝑧) ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧}))))
153	152	ralimdva 3174	. . . . . . . . . . . 12 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) → (∀𝑧 ∈ ({𝑦} ∪ 𝑋) ¬ 𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧})) → ∀𝑧 ∈ ({𝑦} ∪ 𝑋)∀𝑥 ∈ ((Base‘(Scalar‘(𝑅 freeLMod 𝐼))) ∖ {(0_g‘(Scalar‘(𝑅 freeLMod 𝐼)))}) ¬ (𝑥( ·_𝑠 ‘(𝑅 freeLMod 𝐼))𝑧) ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧}))))
154	117, 153	syld 47	. . . . . . . . . . 11 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) → (¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋) → ∀𝑧 ∈ ({𝑦} ∪ 𝑋)∀𝑥 ∈ ((Base‘(Scalar‘(𝑅 freeLMod 𝐼))) ∖ {(0_g‘(Scalar‘(𝑅 freeLMod 𝐼)))}) ¬ (𝑥( ·_𝑠 ‘(𝑅 freeLMod 𝐼))𝑧) ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧}))))
155	154	impr 458	. . . . . . . . . 10 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ (𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼)) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋))) → ∀𝑧 ∈ ({𝑦} ∪ 𝑋)∀𝑥 ∈ ((Base‘(Scalar‘(𝑅 freeLMod 𝐼))) ∖ {(0_g‘(Scalar‘(𝑅 freeLMod 𝐼)))}) ¬ (𝑥( ·_𝑠 ‘(𝑅 freeLMod 𝐼))𝑧) ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧})))
156		ovex 7429	. . . . . . . . . . 11 ⊢ (𝑅 freeLMod 𝐼) ∈ V
157	6, 125, 8, 60, 126, 127	islinds2 21862	. . . . . . . . . . 11 ⊢ ((𝑅 freeLMod 𝐼) ∈ V → (({𝑦} ∪ 𝑋) ∈ (LIndS‘(𝑅 freeLMod 𝐼)) ↔ (({𝑦} ∪ 𝑋) ⊆ (Base‘(𝑅 freeLMod 𝐼)) ∧ ∀𝑧 ∈ ({𝑦} ∪ 𝑋)∀𝑥 ∈ ((Base‘(Scalar‘(𝑅 freeLMod 𝐼))) ∖ {(0_g‘(Scalar‘(𝑅 freeLMod 𝐼)))}) ¬ (𝑥( ·_𝑠 ‘(𝑅 freeLMod 𝐼))𝑧) ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧})))))
158	156, 157	ax-mp 5	. . . . . . . . . 10 ⊢ (({𝑦} ∪ 𝑋) ∈ (LIndS‘(𝑅 freeLMod 𝐼)) ↔ (({𝑦} ∪ 𝑋) ⊆ (Base‘(𝑅 freeLMod 𝐼)) ∧ ∀𝑧 ∈ ({𝑦} ∪ 𝑋)∀𝑥 ∈ ((Base‘(Scalar‘(𝑅 freeLMod 𝐼))) ∖ {(0_g‘(Scalar‘(𝑅 freeLMod 𝐼)))}) ¬ (𝑥( ·_𝑠 ‘(𝑅 freeLMod 𝐼))𝑧) ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧}))))
159	43, 155, 158	sylanbrc 592	. . . . . . . . 9 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ (𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼)) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋))) → ({𝑦} ∪ 𝑋) ∈ (LIndS‘(𝑅 freeLMod 𝐼)))
160		lindsdom 38110	. . . . . . . . 9 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ ({𝑦} ∪ 𝑋) ∈ (LIndS‘(𝑅 freeLMod 𝐼))) → ({𝑦} ∪ 𝑋) ≼ 𝐼)
161	36, 37, 159, 160	syl3anc 1390	. . . . . . . 8 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ (𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼)) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋))) → ({𝑦} ∪ 𝑋) ≼ 𝐼)
162		sdomdomtr 9082	. . . . . . . 8 ⊢ ((𝑋 ≺ ({𝑦} ∪ 𝑋) ∧ ({𝑦} ∪ 𝑋) ≼ 𝐼) → 𝑋 ≺ 𝐼)
163	35, 161, 162	syl2anc 593	. . . . . . 7 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ (𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼)) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋))) → 𝑋 ≺ 𝐼)
164	163	stoic1a 1792	. . . . . 6 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑋 ≺ 𝐼) → ¬ (𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼)) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)))
165	14, 164	sylan2 602	. . . . 5 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑋 ≈ 𝐼) → ¬ (𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼)) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)))
166		iman 405	. . . . 5 ⊢ ((𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼)) → 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) ↔ ¬ (𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼)) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)))
167	165, 166	sylibr 236	. . . 4 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑋 ≈ 𝐼) → (𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼)) → 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)))
168	167	ssrdv 3942	. . 3 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑋 ≈ 𝐼) → (Base‘(𝑅 freeLMod 𝐼)) ⊆ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋))
169	12, 168	eqssd 3953	. 2 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑋 ≈ 𝐼) → ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋) = (Base‘(𝑅 freeLMod 𝐼)))
170		eqid 2762	. . 3 ⊢ (LBasis‘(𝑅 freeLMod 𝐼)) = (LBasis‘(𝑅 freeLMod 𝐼))
171	6, 170, 8	islbs4 21881	. 2 ⊢ (𝑋 ∈ (LBasis‘(𝑅 freeLMod 𝐼)) ↔ (𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼)) ∧ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋) = (Base‘(𝑅 freeLMod 𝐼))))
172	1, 169, 171	sylanbrc 592	1 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑋 ≈ 𝐼) → 𝑋 ∈ (LBasis‘(𝑅 freeLMod 𝐼)))

Colors of variables: wff setvar class

Syntax hints: ¬ wn 3 → wi 4 ↔ wb 208 ∧ wa 399 ∧ w3a 1098 = wceq 1560 ∈ wcel 2142 ≠ wne 2957 ∀wral 3076 Vcvv 3454 ∖ cdif 3901 ∪ cun 3902 ⊆ wss 3904 ⊊ wpss 3905 {csn 4582 class class class wbr 5100 ‘cfv 6521 (class class class)co 7396 ≈ cen 8924 ≼ cdom 8925 ≺ csdm 8926 Fincfn 8927 Basecbs 17245 Scalarcsca 17289 ·_𝑠 cvsca 17290 0_gc0g 17468 Ringcrg 20279 NzRingcnzr 20558 DivRingcdr 20775 LModclmod 20924 LSubSpclss 20995 LSpanclspn 21035 LBasisclbs 21138 LVecclvec 21166 freeLMod cfrlm 21795 LIndSclinds 21854

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1815 ax-4 1829 ax-5 1930 ax-6 1987 ax-7 2028 ax-8 2144 ax-9 2152 ax-10 2175 ax-11 2191 ax-12 2212 ax-ext 2734 ax-rep 5227 ax-sep 5246 ax-nul 5256 ax-pow 5322 ax-pr 5390 ax-un 7718 ax-cnex 11129 ax-resscn 11130 ax-1cn 11131 ax-icn 11132 ax-addcl 11133 ax-addrcl 11134 ax-mulcl 11135 ax-mulrcl 11136 ax-mulcom 11137 ax-addass 11138 ax-mulass 11139 ax-distr 11140 ax-i2m1 11141 ax-1ne0 11142 ax-1rid 11143 ax-rnegex 11144 ax-rrecex 11145 ax-cnre 11146 ax-pre-lttri 11147 ax-pre-lttrn 11148 ax-pre-ltadd 11149 ax-pre-mulgt0 11150

This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1099 df-3an 1100 df-tru 1563 df-fal 1573 df-ex 1800 df-nf 1804 df-sb 2091 df-mo 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ne 2958 df-nel 3062 df-ral 3077 df-rex 3087 df-rmo 3367 df-reu 3368 df-rab 3415 df-v 3456 df-sbc 3745 df-csb 3853 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-pss 3924 df-nul 4286 df-if 4481 df-pw 4557 df-sn 4583 df-pr 4585 df-tp 4587 df-op 4589 df-uni 4866 df-int 4906 df-iun 4951 df-iin 4952 df-br 5101 df-opab 5163 df-mpt 5182 df-tr 5208 df-id 5542 df-eprel 5547 df-po 5555 df-so 5556 df-fr 5600 df-se 5601 df-we 5602 df-xp 5653 df-rel 5654 df-cnv 5655 df-co 5656 df-dm 5657 df-rn 5658 df-res 5659 df-ima 5660 df-pred 6288 df-ord 6349 df-on 6350 df-lim 6351 df-suc 6352 df-iota 6477 df-fun 6523 df-fn 6524 df-f 6525 df-f1 6526 df-fo 6527 df-f1o 6528 df-fv 6529 df-isom 6530 df-riota 7353 df-ov 7399 df-oprab 7400 df-mpo 7401 df-of 7660 df-om 7847 df-1st 7970 df-2nd 7971 df-supp 8141 df-tpos 8206 df-frecs 8262 df-wrecs 8293 df-recs 8342 df-rdg 8381 df-1o 8437 df-2o 8438 df-er 8678 df-map 8810 df-ixp 8880 df-en 8928 df-dom 8929 df-sdom 8930 df-fin 8931 df-fsupp 9308 df-sup 9388 df-oi 9458 df-card 9897 df-pnf 11218 df-mnf 11219 df-xr 11220 df-ltxr 11221 df-le 11222 df-sub 11416 df-neg 11417 df-nn 12211 df-2 12280 df-3 12281 df-4 12282 df-5 12283 df-6 12284 df-7 12285 df-8 12286 df-9 12287 df-n0 12482 df-z 12569 df-dec 12689 df-uz 12840 df-fz 13513 df-fzo 13660 df-seq 14015 df-hash 14344 df-struct 17183 df-sets 17200 df-slot 17218 df-ndx 17230 df-base 17246 df-ress 17267 df-plusg 17299 df-mulr 17300 df-sca 17302 df-vsca 17303 df-ip 17304 df-tset 17305 df-ple 17306 df-ds 17308 df-hom 17310 df-cco 17311 df-0g 17470 df-gsum 17471 df-prds 17476 df-pws 17478 df-mre 17614 df-mrc 17615 df-mri 17616 df-acs 17617 df-mgm 18674 df-sgrp 18753 df-mnd 18769 df-mhm 18817 df-submnd 18818 df-grp 18978 df-minusg 18979 df-sbg 18980 df-mulg 19110 df-subg 19165 df-ghm 19254 df-cntz 19357 df-cmn 19822 df-abl 19823 df-mgp 20187 df-rng 20199 df-ur 20228 df-ring 20281 df-oppr 20382 df-dvdsr 20402 df-unit 20403 df-invr 20433 df-nzr 20559 df-subrg 20616 df-drng 20777 df-lmod 20926 df-lss 20996 df-lsp 21036 df-lmhm 21086 df-lbs 21139 df-lvec 21167 df-sra 21237 df-rgmod 21238 df-dsmm 21781 df-frlm 21796 df-uvc 21832 df-lindf 21855 df-linds 21856

This theorem is referenced by: matunitlindflem2 38113

W3C validator