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 33404

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 1066	. 2 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑋 ≈ 𝐼) → 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼)))
2		drngring 18754	. . . . . . 7 ⊢ (𝑅 ∈ DivRing → 𝑅 ∈ Ring)
3		eqid 2622	. . . . . . . 8 ⊢ (𝑅 freeLMod 𝐼) = (𝑅 freeLMod 𝐼)
4	3	frlmlmod 20093	. . . . . . 7 ⊢ ((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) → (𝑅 freeLMod 𝐼) ∈ LMod)
5	2, 4	sylan 488	. . . . . 6 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) → (𝑅 freeLMod 𝐼) ∈ LMod)
6		eqid 2622	. . . . . . 7 ⊢ (Base‘(𝑅 freeLMod 𝐼)) = (Base‘(𝑅 freeLMod 𝐼))
7	6	linds1 20149	. . . . . 6 ⊢ (𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼)) → 𝑋 ⊆ (Base‘(𝑅 freeLMod 𝐼)))
8		eqid 2622	. . . . . . 7 ⊢ (LSpan‘(𝑅 freeLMod 𝐼)) = (LSpan‘(𝑅 freeLMod 𝐼))
9	6, 8	lspssv 18983	. . . . . 6 ⊢ (((𝑅 freeLMod 𝐼) ∈ LMod ∧ 𝑋 ⊆ (Base‘(𝑅 freeLMod 𝐼))) → ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋) ⊆ (Base‘(𝑅 freeLMod 𝐼)))
10	5, 7, 9	syl2an 494	. . . . 5 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) → ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋) ⊆ (Base‘(𝑅 freeLMod 𝐼)))
11	10	3impa 1259	. . . 4 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) → ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋) ⊆ (Base‘(𝑅 freeLMod 𝐼)))
12	11	adantr 481	. . 3 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑋 ≈ 𝐼) → ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋) ⊆ (Base‘(𝑅 freeLMod 𝐼)))
13		bren2 7986	. . . . . . 7 ⊢ (𝑋 ≈ 𝐼 ↔ (𝑋 ≼ 𝐼 ∧ ¬ 𝑋 ≺ 𝐼))
14	13	simprbi 480	. . . . . 6 ⊢ (𝑋 ≈ 𝐼 → ¬ 𝑋 ≺ 𝐼)
15		snfi 8038	. . . . . . . . . . . 12 ⊢ {𝑦} ∈ Fin
16		simp2 1062	. . . . . . . . . . . . 13 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) → 𝐼 ∈ Fin)
17		lindsdom 33403	. . . . . . . . . . . . 13 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) → 𝑋 ≼ 𝐼)
18		domfi 8181	. . . . . . . . . . . . 13 ⊢ ((𝐼 ∈ Fin ∧ 𝑋 ≼ 𝐼) → 𝑋 ∈ Fin)
19	16, 17, 18	syl2anc 693	. . . . . . . . . . . 12 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) → 𝑋 ∈ Fin)
20		unfi 8227	. . . . . . . . . . . 12 ⊢ (({𝑦} ∈ Fin ∧ 𝑋 ∈ Fin) → ({𝑦} ∪ 𝑋) ∈ Fin)
21	15, 19, 20	sylancr 695	. . . . . . . . . . 11 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) → ({𝑦} ∪ 𝑋) ∈ Fin)
22	21	adantr 481	. . . . . . . . . 10 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) → ({𝑦} ∪ 𝑋) ∈ Fin)
23		vex 3203	. . . . . . . . . . . . . 14 ⊢ 𝑦 ∈ V
24	23	snss 4316	. . . . . . . . . . . . 13 ⊢ (𝑦 ∈ 𝑋 ↔ {𝑦} ⊆ 𝑋)
25	6, 8	lspssid 18985	. . . . . . . . . . . . . . . 16 ⊢ (((𝑅 freeLMod 𝐼) ∈ LMod ∧ 𝑋 ⊆ (Base‘(𝑅 freeLMod 𝐼))) → 𝑋 ⊆ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋))
26	5, 7, 25	syl2an 494	. . . . . . . . . . . . . . 15 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) → 𝑋 ⊆ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋))
27	26	3impa 1259	. . . . . . . . . . . . . 14 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) → 𝑋 ⊆ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋))
28	27	sseld 3602	. . . . . . . . . . . . 13 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) → (𝑦 ∈ 𝑋 → 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)))
29	24, 28	syl5bir 233	. . . . . . . . . . . 12 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) → ({𝑦} ⊆ 𝑋 → 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)))
30	29	con3dimp 457	. . . . . . . . . . 11 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) → ¬ {𝑦} ⊆ 𝑋)
31		nsspssun 3857	. . . . . . . . . . 11 ⊢ (¬ {𝑦} ⊆ 𝑋 ↔ 𝑋 ⊊ ({𝑦} ∪ 𝑋))
32	30, 31	sylib 208	. . . . . . . . . 10 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) → 𝑋 ⊊ ({𝑦} ∪ 𝑋))
33		php3 8146	. . . . . . . . . 10 ⊢ ((({𝑦} ∪ 𝑋) ∈ Fin ∧ 𝑋 ⊊ ({𝑦} ∪ 𝑋)) → 𝑋 ≺ ({𝑦} ∪ 𝑋))
34	22, 32, 33	syl2anc 693	. . . . . . . . 9 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) → 𝑋 ≺ ({𝑦} ∪ 𝑋))
35	34	adantrl 752	. . . . . . . 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 1064	. . . . . . . . 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 1065	. . . . . . . . 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 4339	. . . . . . . . . . . 12 ⊢ (𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼)) → {𝑦} ⊆ (Base‘(𝑅 freeLMod 𝐼)))
39	38	adantr 481	. . . . . . . . . . 11 ⊢ ((𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼)) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) → {𝑦} ⊆ (Base‘(𝑅 freeLMod 𝐼)))
40	7	3ad2ant3 1084	. . . . . . . . . . 11 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) → 𝑋 ⊆ (Base‘(𝑅 freeLMod 𝐼)))
41		unss 3787	. . . . . . . . . . . 12 ⊢ (({𝑦} ⊆ (Base‘(𝑅 freeLMod 𝐼)) ∧ 𝑋 ⊆ (Base‘(𝑅 freeLMod 𝐼))) ↔ ({𝑦} ∪ 𝑋) ⊆ (Base‘(𝑅 freeLMod 𝐼)))
42	41	biimpi 206	. . . . . . . . . . 11 ⊢ (({𝑦} ⊆ (Base‘(𝑅 freeLMod 𝐼)) ∧ 𝑋 ⊆ (Base‘(𝑅 freeLMod 𝐼))) → ({𝑦} ∪ 𝑋) ⊆ (Base‘(𝑅 freeLMod 𝐼)))
43	39, 40, 42	syl2anr 495	. . . . . . . . . 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 477	. . . . . . . . . . . . . . . 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 457	. . . . . . . . . . . . . . . . . 18 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) → ¬ 𝑦 ∈ 𝑋)
46		difsn 4328	. . . . . . . . . . . . . . . . . 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 6195	. . . . . . . . . . . . . . . 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 2723	. . . . . . . . . . . . . . 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 751	. . . . . . . . . . . . . 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 4341	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (𝑧 ∈ 𝑋 → ((𝑋 ∖ {𝑧}) ∪ {𝑧}) = 𝑋)
52	51	fveq2d 6195	. . . . . . . . . . . . . . . . . . . 20 ⊢ (𝑧 ∈ 𝑋 → ((LSpan‘(𝑅 freeLMod 𝐼))‘((𝑋 ∖ {𝑧}) ∪ {𝑧})) = ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋))
53	52	eleq2d 2687	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝑧 ∈ 𝑋 → (𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘((𝑋 ∖ {𝑧}) ∪ {𝑧})) ↔ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)))
54	53	notbid 308	. . . . . . . . . . . . . . . . . 18 ⊢ (𝑧 ∈ 𝑋 → (¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘((𝑋 ∖ {𝑧}) ∪ {𝑧})) ↔ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)))
55	54	biimparc 504	. . . . . . . . . . . . . . . . 17 ⊢ ((¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋) ∧ 𝑧 ∈ 𝑋) → ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘((𝑋 ∖ {𝑧}) ∪ {𝑧})))
56	55	adantll 750	. . . . . . . . . . . . . . . 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 20097	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) → 𝑅 = (Scalar‘(𝑅 freeLMod 𝐼)))
58		simpl 473	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) → 𝑅 ∈ DivRing)
59	57, 58	eqeltrrd 2702	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) → (Scalar‘(𝑅 freeLMod 𝐼)) ∈ DivRing)
60		eqid 2622	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (Scalar‘(𝑅 freeLMod 𝐼)) = (Scalar‘(𝑅 freeLMod 𝐼))
61	60	islvec 19104	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝑅 freeLMod 𝐼) ∈ LVec ↔ ((𝑅 freeLMod 𝐼) ∈ LMod ∧ (Scalar‘(𝑅 freeLMod 𝐼)) ∈ DivRing))
62	5, 59, 61	sylanbrc 698	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) → (𝑅 freeLMod 𝐼) ∈ LVec)
63	62	3adant3 1081	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) → (𝑅 freeLMod 𝐼) ∈ LVec)
64	63	ad4antr 768	. . . . . . . . . . . . . . . . 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 3748	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼)) → (𝑋 ∖ {𝑧}) ⊆ (Base‘(𝑅 freeLMod 𝐼)))
66	65	3ad2ant3 1084	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) → (𝑋 ∖ {𝑧}) ⊆ (Base‘(𝑅 freeLMod 𝐼)))
67	66	ad4antr 768	. . . . . . . . . . . . . . . . 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 807	. . . . . . . . . . . . . . . . 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 3880	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (({𝑦} ∪ 𝑋) ∖ {𝑧}) = (({𝑦} ∖ {𝑧}) ∪ (𝑋 ∖ {𝑧}))
70	69	equncomi 3759	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (({𝑦} ∪ 𝑋) ∖ {𝑧}) = ((𝑋 ∖ {𝑧}) ∪ ({𝑦} ∖ {𝑧}))
71		elsni 4194	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 ⊢ (𝑧 ∈ {𝑦} → 𝑧 = 𝑦)
72	71	eleq1d 2686	. . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 ⊢ (𝑧 ∈ {𝑦} → (𝑧 ∈ 𝑋 ↔ 𝑦 ∈ 𝑋))
73	72	notbid 308	. . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ⊢ (𝑧 ∈ {𝑦} → (¬ 𝑧 ∈ 𝑋 ↔ ¬ 𝑦 ∈ 𝑋))
74	45, 73	syl5ibrcom 237	. . . . . . . . . . . . . . . . . . . . . . . . . . 27 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) → (𝑧 ∈ {𝑦} → ¬ 𝑧 ∈ 𝑋))
75	74	con2d 129	. . . . . . . . . . . . . . . . . . . . . . . . . 26 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) → (𝑧 ∈ 𝑋 → ¬ 𝑧 ∈ {𝑦}))
76	75	imp 445	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ ((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) ∧ 𝑧 ∈ 𝑋) → ¬ 𝑧 ∈ {𝑦})
77		difsn 4328	. . . . . . . . . . . . . . . . . . . . . . . . 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 3767	. . . . . . . . . . . . . . . . . . . . . . 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	syl5eq 2668	. . . . . . . . . . . . . . . . . . . . . 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 6195	. . . . . . . . . . . . . . . . . . . . 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 2687	. . . . . . . . . . . . . . . . . . . 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 755	. . . . . . . . . . . . . . . . . . 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 501	. . . . . . . . . . . . . . . . . 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 19262	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ (𝑅 ∈ DivRing → 𝑅 ∈ NzRing)
86	85	adantr 481	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) → 𝑅 ∈ NzRing)
87	57, 86	eqeltrrd 2702	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) → (Scalar‘(𝑅 freeLMod 𝐼)) ∈ NzRing)
88	5, 87	jca 554	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) → ((𝑅 freeLMod 𝐼) ∈ LMod ∧ (Scalar‘(𝑅 freeLMod 𝐼)) ∈ NzRing))
89	88	anim1i 592	. . . . . . . . . . . . . . . . . . . . 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 1259	. . . . . . . . . . . . . . . . . . . 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 20158	. . . . . . . . . . . . . . . . . . . . 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 1265	. . . . . . . . . . . . . . . . . . . 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 488	. . . . . . . . . . . . . . . . . . 19 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑧 ∈ 𝑋) → ¬ 𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(𝑋 ∖ {𝑧})))
94	93	ad5ant14 1302	. . . . . . . . . . . . . . . . . 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 3585	. . . . . . . . . . . . . . . . 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 2622	. . . . . . . . . . . . . . . . . 18 ⊢ (LSubSp‘(𝑅 freeLMod 𝐼)) = (LSubSp‘(𝑅 freeLMod 𝐼))
97	6, 96, 8	lspsolv 19143	. . . . . . . . . . . . . . . . 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 1328	. . . . . . . . . . . . . . . 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 691	. . . . . . . . . . . . . . 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 2966	. . . . . . . . . . . . . 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 3794	. . . . . . . . . . . . . . 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 4187	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (𝑧 = 𝑦 → {𝑧} = {𝑦})
104	103	difeq2d 3728	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (𝑧 = 𝑦 → (({𝑦} ∪ 𝑋) ∖ {𝑧}) = (({𝑦} ∪ 𝑋) ∖ {𝑦}))
105		uncom 3757	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ({𝑦} ∪ 𝑋) = (𝑋 ∪ {𝑦})
106	105	difeq1i 3724	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (({𝑦} ∪ 𝑋) ∖ {𝑦}) = ((𝑋 ∪ {𝑦}) ∖ {𝑦})
107		difun2 4048	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((𝑋 ∪ {𝑦}) ∖ {𝑦}) = (𝑋 ∖ {𝑦})
108	106, 107	eqtri 2644	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (({𝑦} ∪ 𝑋) ∖ {𝑦}) = (𝑋 ∖ {𝑦})
109	104, 108	syl6eq 2672	. . . . . . . . . . . . . . . . . . . 20 ⊢ (𝑧 = 𝑦 → (({𝑦} ∪ 𝑋) ∖ {𝑧}) = (𝑋 ∖ {𝑦}))
110	109	fveq2d 6195	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝑧 = 𝑦 → ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧})) = ((LSpan‘(𝑅 freeLMod 𝐼))‘(𝑋 ∖ {𝑦})))
111	102, 110	eleq12d 2695	. . . . . . . . . . . . . . . . . 18 ⊢ (𝑧 = 𝑦 → (𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧})) ↔ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(𝑋 ∖ {𝑦}))))
112	111	notbid 308	. . . . . . . . . . . . . . . . 17 ⊢ (𝑧 = 𝑦 → (¬ 𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧})) ↔ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(𝑋 ∖ {𝑦}))))
113	23, 112	ralsn 4222	. . . . . . . . . . . . . . . 16 ⊢ (∀𝑧 ∈ {𝑦} ¬ 𝑧 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧})) ↔ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(𝑋 ∖ {𝑦})))
114	113	anbi1i 731	. . . . . . . . . . . . . . 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 264	. . . . . . . . . . . . . 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 698	. . . . . . . . . . . . 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 450	. . . . . . . . . . . 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 766	. . . . . . . . . . . . . . . . . . 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 4317	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (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	biimpi 206	. . . . . . . . . . . . . . . . . . . 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)))))
121	120	adantl 482	. . . . . . . . . . . . . . . . . . 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)))))
122	38, 7, 42	syl2anr 495	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼)) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) → ({𝑦} ∪ 𝑋) ⊆ (Base‘(𝑅 freeLMod 𝐼)))
123	122	3ad2antl3 1225	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) → ({𝑦} ∪ 𝑋) ⊆ (Base‘(𝑅 freeLMod 𝐼)))
124	123	sselda 3603	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) ∧ 𝑧 ∈ ({𝑦} ∪ 𝑋)) → 𝑧 ∈ (Base‘(𝑅 freeLMod 𝐼)))
125	124	adantr 481	. . . . . . . . . . . . . . . . . . 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)))
126		eqid 2622	. . . . . . . . . . . . . . . . . . . 20 ⊢ ( ·_𝑠 ‘(𝑅 freeLMod 𝐼)) = ( ·_𝑠 ‘(𝑅 freeLMod 𝐼))
127		eqid 2622	. . . . . . . . . . . . . . . . . . . 20 ⊢ (Base‘(Scalar‘(𝑅 freeLMod 𝐼))) = (Base‘(Scalar‘(𝑅 freeLMod 𝐼)))
128		eqid 2622	. . . . . . . . . . . . . . . . . . . 20 ⊢ (0_g‘(Scalar‘(𝑅 freeLMod 𝐼))) = (0_g‘(Scalar‘(𝑅 freeLMod 𝐼)))
129	6, 60, 126, 127, 128, 8	lspsnvs 19114	. . . . . . . . . . . . . . . . . . 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}))
130	118, 121, 125, 129	syl3anc 1326	. . . . . . . . . . . . . . . . . 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}))
131	130	sseq1d 3632	. . . . . . . . . . . . . . . . 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}))))
132	5	3adant3 1081	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) → (𝑅 freeLMod 𝐼) ∈ LMod)
133	132	ad3antrrr 766	. . . . . . . . . . . . . . . . . 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)
134		df-3an 1039	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ↔ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))))
135	122	ssdifssd 3748	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼)) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) → (({𝑦} ∪ 𝑋) ∖ {𝑧}) ⊆ (Base‘(𝑅 freeLMod 𝐼)))
136	6, 96, 8	lspcl 18976	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (((𝑅 freeLMod 𝐼) ∈ LMod ∧ (({𝑦} ∪ 𝑋) ∖ {𝑧}) ⊆ (Base‘(𝑅 freeLMod 𝐼))) → ((LSpan‘(𝑅 freeLMod 𝐼))‘(({𝑦} ∪ 𝑋) ∖ {𝑧})) ∈ (LSubSp‘(𝑅 freeLMod 𝐼)))
137	5, 135, 136	syl2an 494	. . . . . . . . . . . . . . . . . . . . 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)))
138	137	anassrs 680	. . . . . . . . . . . . . . . . . . . 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)))
139	134, 138	sylanb 489	. . . . . . . . . . . . . . . . . . 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)))
140	139	ad2antrr 762	. . . . . . . . . . . . . . . . . 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)))
141		eldifi 3732	. . . . . . . . . . . . . . . . . . . 20 ⊢ (𝑥 ∈ ((Base‘(Scalar‘(𝑅 freeLMod 𝐼))) ∖ {(0_g‘(Scalar‘(𝑅 freeLMod 𝐼)))}) → 𝑥 ∈ (Base‘(Scalar‘(𝑅 freeLMod 𝐼))))
142	141	adantl 482	. . . . . . . . . . . . . . . . . . 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))))
143	6, 60, 126, 127	lmodvscl 18880	. . . . . . . . . . . . . . . . . . 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)))
144	133, 142, 125, 143	syl3anc 1326	. . . . . . . . . . . . . . . . . 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)))
145	6, 96, 8, 133, 140, 144	lspsnel5 18995	. . . . . . . . . . . . . . . . 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}))))
146	132	ad2antrr 762	. . . . . . . . . . . . . . . . . . 19 ⊢ ((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼))) ∧ 𝑧 ∈ ({𝑦} ∪ 𝑋)) → (𝑅 freeLMod 𝐼) ∈ LMod)
147	139	adantr 481	. . . . . . . . . . . . . . . . . . 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)))
148	6, 96, 8, 146, 147, 124	lspsnel5 18995	. . . . . . . . . . . . . . . . . 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}))))
149	148	adantr 481	. . . . . . . . . . . . . . . . 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}))))
150	131, 145, 149	3bitr4rd 301	. . . . . . . . . . . . . . . 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}))))
151	150	notbid 308	. . . . . . . . . . . . . . 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}))))
152	151	biimpd 219	. . . . . . . . . . . . . 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}))))
153	152	ralrimdva 2969	. . . . . . . . . . . . 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}))))
154	153	ralimdva 2962	. . . . . . . . . . . 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}))))
155	117, 154	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}))))
156	155	impr 649	. . . . . . . . . 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})))
157		ovex 6678	. . . . . . . . . . 11 ⊢ (𝑅 freeLMod 𝐼) ∈ V
158	6, 126, 8, 60, 127, 128	islinds2 20152	. . . . . . . . . . 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})))))
159	157, 158	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}))))
160	43, 156, 159	sylanbrc 698	. . . . . . . . 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)))
161		lindsdom 33403	. . . . . . . . 9 ⊢ ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ ({𝑦} ∪ 𝑋) ∈ (LIndS‘(𝑅 freeLMod 𝐼))) → ({𝑦} ∪ 𝑋) ≼ 𝐼)
162	36, 37, 160, 161	syl3anc 1326	. . . . . . . 8 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ (𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼)) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋))) → ({𝑦} ∪ 𝑋) ≼ 𝐼)
163		sdomdomtr 8093	. . . . . . . 8 ⊢ ((𝑋 ≺ ({𝑦} ∪ 𝑋) ∧ ({𝑦} ∪ 𝑋) ≼ 𝐼) → 𝑋 ≺ 𝐼)
164	35, 162, 163	syl2anc 693	. . . . . . 7 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ (𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼)) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋))) → 𝑋 ≺ 𝐼)
165	164	stoic1a 1697	. . . . . 6 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ ¬ 𝑋 ≺ 𝐼) → ¬ (𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼)) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)))
166	14, 165	sylan2 491	. . . . 5 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑋 ≈ 𝐼) → ¬ (𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼)) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)))
167		iman 440	. . . . 5 ⊢ ((𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼)) → 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)) ↔ ¬ (𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼)) ∧ ¬ 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)))
168	166, 167	sylibr 224	. . . 4 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑋 ≈ 𝐼) → (𝑦 ∈ (Base‘(𝑅 freeLMod 𝐼)) → 𝑦 ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋)))
169	168	ssrdv 3609	. . 3 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑋 ≈ 𝐼) → (Base‘(𝑅 freeLMod 𝐼)) ⊆ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋))
170	12, 169	eqssd 3620	. 2 ⊢ (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ 𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ 𝑋 ≈ 𝐼) → ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋) = (Base‘(𝑅 freeLMod 𝐼)))
171		eqid 2622	. . 3 ⊢ (LBasis‘(𝑅 freeLMod 𝐼)) = (LBasis‘(𝑅 freeLMod 𝐼))
172	6, 171, 8	islbs4 20171	. 2 ⊢ (𝑋 ∈ (LBasis‘(𝑅 freeLMod 𝐼)) ↔ (𝑋 ∈ (LIndS‘(𝑅 freeLMod 𝐼)) ∧ ((LSpan‘(𝑅 freeLMod 𝐼))‘𝑋) = (Base‘(𝑅 freeLMod 𝐼))))
173	1, 170, 172	sylanbrc 698	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 196 ∧ wa 384 ∧ w3a 1037 = wceq 1483 ∈ wcel 1990 ≠ wne 2794 ∀wral 2912 Vcvv 3200 ∖ cdif 3571 ∪ cun 3572 ⊆ wss 3574 ⊊ wpss 3575 {csn 4177 class class class wbr 4653 ‘cfv 5888 (class class class)co 6650 ≈ cen 7952 ≼ cdom 7953 ≺ csdm 7954 Fincfn 7955 Basecbs 15857 Scalarcsca 15944 ·_𝑠 cvsca 15945 0_gc0g 16100 Ringcrg 18547 DivRingcdr 18747 LModclmod 18863 LSubSpclss 18932 LSpanclspn 18971 LBasisclbs 19074 LVecclvec 19102 NzRingcnzr 19257 freeLMod cfrlm 20090 LIndSclinds 20144

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-8 1992 ax-9 1999 ax-10 2019 ax-11 2034 ax-12 2047 ax-13 2246 ax-ext 2602 ax-rep 4771 ax-sep 4781 ax-nul 4789 ax-pow 4843 ax-pr 4906 ax-un 6949 ax-inf2 8538 ax-cnex 9992 ax-resscn 9993 ax-1cn 9994 ax-icn 9995 ax-addcl 9996 ax-addrcl 9997 ax-mulcl 9998 ax-mulrcl 9999 ax-mulcom 10000 ax-addass 10001 ax-mulass 10002 ax-distr 10003 ax-i2m1 10004 ax-1ne0 10005 ax-1rid 10006 ax-rnegex 10007 ax-rrecex 10008 ax-cnre 10009 ax-pre-lttri 10010 ax-pre-lttrn 10011 ax-pre-ltadd 10012 ax-pre-mulgt0 10013

This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-3or 1038 df-3an 1039 df-tru 1486 df-ex 1705 df-nf 1710 df-sb 1881 df-eu 2474 df-mo 2475 df-clab 2609 df-cleq 2615 df-clel 2618 df-nfc 2753 df-ne 2795 df-nel 2898 df-ral 2917 df-rex 2918 df-reu 2919 df-rmo 2920 df-rab 2921 df-v 3202 df-sbc 3436 df-csb 3534 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-pss 3590 df-nul 3916 df-if 4087 df-pw 4160 df-sn 4178 df-pr 4180 df-tp 4182 df-op 4184 df-uni 4437 df-int 4476 df-iun 4522 df-iin 4523 df-br 4654 df-opab 4713 df-mpt 4730 df-tr 4753 df-id 5024 df-eprel 5029 df-po 5035 df-so 5036 df-fr 5073 df-se 5074 df-we 5075 df-xp 5120 df-rel 5121 df-cnv 5122 df-co 5123 df-dm 5124 df-rn 5125 df-res 5126 df-ima 5127 df-pred 5680 df-ord 5726 df-on 5727 df-lim 5728 df-suc 5729 df-iota 5851 df-fun 5890 df-fn 5891 df-f 5892 df-f1 5893 df-fo 5894 df-f1o 5895 df-fv 5896 df-isom 5897 df-riota 6611 df-ov 6653 df-oprab 6654 df-mpt2 6655 df-of 6897 df-om 7066 df-1st 7168 df-2nd 7169 df-supp 7296 df-tpos 7352 df-wrecs 7407 df-recs 7468 df-rdg 7506 df-1o 7560 df-oadd 7564 df-er 7742 df-map 7859 df-ixp 7909 df-en 7956 df-dom 7957 df-sdom 7958 df-fin 7959 df-fsupp 8276 df-sup 8348 df-oi 8415 df-card 8765 df-pnf 10076 df-mnf 10077 df-xr 10078 df-ltxr 10079 df-le 10080 df-sub 10268 df-neg 10269 df-nn 11021 df-2 11079 df-3 11080 df-4 11081 df-5 11082 df-6 11083 df-7 11084 df-8 11085 df-9 11086 df-n0 11293 df-z 11378 df-dec 11494 df-uz 11688 df-fz 12327 df-fzo 12466 df-seq 12802 df-hash 13118 df-struct 15859 df-ndx 15860 df-slot 15861 df-base 15863 df-sets 15864 df-ress 15865 df-plusg 15954 df-mulr 15955 df-sca 15957 df-vsca 15958 df-ip 15959 df-tset 15960 df-ple 15961 df-ds 15964 df-hom 15966 df-cco 15967 df-0g 16102 df-gsum 16103 df-prds 16108 df-pws 16110 df-mre 16246 df-mrc 16247 df-mri 16248 df-acs 16249 df-mgm 17242 df-sgrp 17284 df-mnd 17295 df-mhm 17335 df-submnd 17336 df-grp 17425 df-minusg 17426 df-sbg 17427 df-mulg 17541 df-subg 17591 df-ghm 17658 df-cntz 17750 df-cmn 18195 df-abl 18196 df-mgp 18490 df-ur 18502 df-ring 18549 df-oppr 18623 df-dvdsr 18641 df-unit 18642 df-invr 18672 df-drng 18749 df-subrg 18778 df-lmod 18865 df-lss 18933 df-lsp 18972 df-lmhm 19022 df-lbs 19075 df-lvec 19103 df-sra 19172 df-rgmod 19173 df-nzr 19258 df-dsmm 20076 df-frlm 20091 df-uvc 20122 df-lindf 20145 df-linds 20146

This theorem is referenced by: matunitlindflem2 33406

W3C validator