Theorem oawordeulem 7839

Description: Lemma for oawordex 7842. (Contributed by NM, 11-Dec-2004.)

Hypotheses

Ref	Expression
oawordeulem.1	⊢ 𝐴 ∈ On
oawordeulem.2	⊢ 𝐵 ∈ On
oawordeulem.3	⊢ 𝑆 = {𝑦 ∈ On ∣ 𝐵 ⊆ (𝐴 +𝑜 𝑦)}

Assertion

Ref	Expression
oawordeulem	⊢ (𝐴 ⊆ 𝐵 → ∃!𝑥 ∈ On (𝐴 +𝑜 𝑥) = 𝐵)

Distinct variable groups:   𝑥,𝑦,𝐴   𝑥,𝐵,𝑦   𝑥,𝑆

Allowed substitution hint:   𝑆(𝑦)

Proof of Theorem oawordeulem

Dummy variable 𝑧 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		oawordeulem.3	. . . . . 6 ⊢ 𝑆 = {𝑦 ∈ On ∣ 𝐵 ⊆ (𝐴 +𝑜 𝑦)}
2		ssrab2 3847	. . . . . 6 ⊢ {𝑦 ∈ On ∣ 𝐵 ⊆ (𝐴 +𝑜 𝑦)} ⊆ On
3	1, 2	eqsstri 3795	. . . . 5 ⊢ 𝑆 ⊆ On
4		oawordeulem.2	. . . . . . 7 ⊢ 𝐵 ∈ On
5		oawordeulem.1	. . . . . . . 8 ⊢ 𝐴 ∈ On
6		oaword2 7838	. . . . . . . 8 ⊢ ((𝐵 ∈ On ∧ 𝐴 ∈ On) → 𝐵 ⊆ (𝐴 +𝑜 𝐵))
7	4, 5, 6	mp2an 683	. . . . . . 7 ⊢ 𝐵 ⊆ (𝐴 +𝑜 𝐵)
8		oveq2 6850	. . . . . . . . 9 ⊢ (𝑦 = 𝐵 → (𝐴 +𝑜 𝑦) = (𝐴 +𝑜 𝐵))
9	8	sseq2d 3793	. . . . . . . 8 ⊢ (𝑦 = 𝐵 → (𝐵 ⊆ (𝐴 +𝑜 𝑦) ↔ 𝐵 ⊆ (𝐴 +𝑜 𝐵)))
10	9, 1	elrab2 3523	. . . . . . 7 ⊢ (𝐵 ∈ 𝑆 ↔ (𝐵 ∈ On ∧ 𝐵 ⊆ (𝐴 +𝑜 𝐵)))
11	4, 7, 10	mpbir2an 702	. . . . . 6 ⊢ 𝐵 ∈ 𝑆
12	11	ne0ii 4088	. . . . 5 ⊢ 𝑆 ≠ ∅
13		oninton 7198	. . . . 5 ⊢ ((𝑆 ⊆ On ∧ 𝑆 ≠ ∅) → ∩ 𝑆 ∈ On)
14	3, 12, 13	mp2an 683	. . . 4 ⊢ ∩ 𝑆 ∈ On
15		onzsl 7244	. . . . . . . 8 ⊢ (∩ 𝑆 ∈ On ↔ (∩ 𝑆 = ∅ ∨ ∃𝑧 ∈ On ∩ 𝑆 = suc 𝑧 ∨ (∩ 𝑆 ∈ V ∧ Lim ∩ 𝑆)))
16	14, 15	mpbi 221	. . . . . . 7 ⊢ (∩ 𝑆 = ∅ ∨ ∃𝑧 ∈ On ∩ 𝑆 = suc 𝑧 ∨ (∩ 𝑆 ∈ V ∧ Lim ∩ 𝑆))
17		oveq2 6850	. . . . . . . . . . 11 ⊢ (∩ 𝑆 = ∅ → (𝐴 +𝑜 ∩ 𝑆) = (𝐴 +𝑜 ∅))
18		oa0 7801	. . . . . . . . . . . 12 ⊢ (𝐴 ∈ On → (𝐴 +𝑜 ∅) = 𝐴)
19	5, 18	ax-mp 5	. . . . . . . . . . 11 ⊢ (𝐴 +𝑜 ∅) = 𝐴
20	17, 19	syl6eq 2815	. . . . . . . . . 10 ⊢ (∩ 𝑆 = ∅ → (𝐴 +𝑜 ∩ 𝑆) = 𝐴)
21	20	sseq1d 3792	. . . . . . . . 9 ⊢ (∩ 𝑆 = ∅ → ((𝐴 +𝑜 ∩ 𝑆) ⊆ 𝐵 ↔ 𝐴 ⊆ 𝐵))
22	21	biimprd 239	. . . . . . . 8 ⊢ (∩ 𝑆 = ∅ → (𝐴 ⊆ 𝐵 → (𝐴 +𝑜 ∩ 𝑆) ⊆ 𝐵))
23		oveq2 6850	. . . . . . . . . . . 12 ⊢ (∩ 𝑆 = suc 𝑧 → (𝐴 +𝑜 ∩ 𝑆) = (𝐴 +𝑜 suc 𝑧))
24		oasuc 7809	. . . . . . . . . . . . 13 ⊢ ((𝐴 ∈ On ∧ 𝑧 ∈ On) → (𝐴 +𝑜 suc 𝑧) = suc (𝐴 +𝑜 𝑧))
25	5, 24	mpan 681	. . . . . . . . . . . 12 ⊢ (𝑧 ∈ On → (𝐴 +𝑜 suc 𝑧) = suc (𝐴 +𝑜 𝑧))
26	23, 25	sylan9eqr 2821	. . . . . . . . . . 11 ⊢ ((𝑧 ∈ On ∧ ∩ 𝑆 = suc 𝑧) → (𝐴 +𝑜 ∩ 𝑆) = suc (𝐴 +𝑜 𝑧))
27		vex 3353	. . . . . . . . . . . . . . 15 ⊢ 𝑧 ∈ V
28	27	sucid 5987	. . . . . . . . . . . . . 14 ⊢ 𝑧 ∈ suc 𝑧
29		eleq2 2833	. . . . . . . . . . . . . 14 ⊢ (∩ 𝑆 = suc 𝑧 → (𝑧 ∈ ∩ 𝑆 ↔ 𝑧 ∈ suc 𝑧))
30	28, 29	mpbiri 249	. . . . . . . . . . . . 13 ⊢ (∩ 𝑆 = suc 𝑧 → 𝑧 ∈ ∩ 𝑆)
31	14	oneli 6015	. . . . . . . . . . . . . 14 ⊢ (𝑧 ∈ ∩ 𝑆 → 𝑧 ∈ On)
32	1	inteqi 4637	. . . . . . . . . . . . . . . . 17 ⊢ ∩ 𝑆 = ∩ {𝑦 ∈ On ∣ 𝐵 ⊆ (𝐴 +𝑜 𝑦)}
33	32	eleq2i 2836	. . . . . . . . . . . . . . . 16 ⊢ (𝑧 ∈ ∩ 𝑆 ↔ 𝑧 ∈ ∩ {𝑦 ∈ On ∣ 𝐵 ⊆ (𝐴 +𝑜 𝑦)})
34		oveq2 6850	. . . . . . . . . . . . . . . . . 18 ⊢ (𝑦 = 𝑧 → (𝐴 +𝑜 𝑦) = (𝐴 +𝑜 𝑧))
35	34	sseq2d 3793	. . . . . . . . . . . . . . . . 17 ⊢ (𝑦 = 𝑧 → (𝐵 ⊆ (𝐴 +𝑜 𝑦) ↔ 𝐵 ⊆ (𝐴 +𝑜 𝑧)))
36	35	onnminsb 7202	. . . . . . . . . . . . . . . 16 ⊢ (𝑧 ∈ On → (𝑧 ∈ ∩ {𝑦 ∈ On ∣ 𝐵 ⊆ (𝐴 +𝑜 𝑦)} → ¬ 𝐵 ⊆ (𝐴 +𝑜 𝑧)))
37	33, 36	syl5bi 233	. . . . . . . . . . . . . . 15 ⊢ (𝑧 ∈ On → (𝑧 ∈ ∩ 𝑆 → ¬ 𝐵 ⊆ (𝐴 +𝑜 𝑧)))
38		oacl 7820	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝐴 ∈ On ∧ 𝑧 ∈ On) → (𝐴 +𝑜 𝑧) ∈ On)
39	5, 38	mpan 681	. . . . . . . . . . . . . . . . 17 ⊢ (𝑧 ∈ On → (𝐴 +𝑜 𝑧) ∈ On)
40		ontri1 5942	. . . . . . . . . . . . . . . . 17 ⊢ ((𝐵 ∈ On ∧ (𝐴 +𝑜 𝑧) ∈ On) → (𝐵 ⊆ (𝐴 +𝑜 𝑧) ↔ ¬ (𝐴 +𝑜 𝑧) ∈ 𝐵))
41	4, 39, 40	sylancr 581	. . . . . . . . . . . . . . . 16 ⊢ (𝑧 ∈ On → (𝐵 ⊆ (𝐴 +𝑜 𝑧) ↔ ¬ (𝐴 +𝑜 𝑧) ∈ 𝐵))
42	41	con2bid 345	. . . . . . . . . . . . . . 15 ⊢ (𝑧 ∈ On → ((𝐴 +𝑜 𝑧) ∈ 𝐵 ↔ ¬ 𝐵 ⊆ (𝐴 +𝑜 𝑧)))
43	37, 42	sylibrd 250	. . . . . . . . . . . . . 14 ⊢ (𝑧 ∈ On → (𝑧 ∈ ∩ 𝑆 → (𝐴 +𝑜 𝑧) ∈ 𝐵))
44	31, 43	mpcom 38	. . . . . . . . . . . . 13 ⊢ (𝑧 ∈ ∩ 𝑆 → (𝐴 +𝑜 𝑧) ∈ 𝐵)
45	4	onordi 6012	. . . . . . . . . . . . . 14 ⊢ Ord 𝐵
46		ordsucss 7216	. . . . . . . . . . . . . 14 ⊢ (Ord 𝐵 → ((𝐴 +𝑜 𝑧) ∈ 𝐵 → suc (𝐴 +𝑜 𝑧) ⊆ 𝐵))
47	45, 46	ax-mp 5	. . . . . . . . . . . . 13 ⊢ ((𝐴 +𝑜 𝑧) ∈ 𝐵 → suc (𝐴 +𝑜 𝑧) ⊆ 𝐵)
48	30, 44, 47	3syl 18	. . . . . . . . . . . 12 ⊢ (∩ 𝑆 = suc 𝑧 → suc (𝐴 +𝑜 𝑧) ⊆ 𝐵)
49	48	adantl 473	. . . . . . . . . . 11 ⊢ ((𝑧 ∈ On ∧ ∩ 𝑆 = suc 𝑧) → suc (𝐴 +𝑜 𝑧) ⊆ 𝐵)
50	26, 49	eqsstrd 3799	. . . . . . . . . 10 ⊢ ((𝑧 ∈ On ∧ ∩ 𝑆 = suc 𝑧) → (𝐴 +𝑜 ∩ 𝑆) ⊆ 𝐵)
51	50	rexlimiva 3175	. . . . . . . . 9 ⊢ (∃𝑧 ∈ On ∩ 𝑆 = suc 𝑧 → (𝐴 +𝑜 ∩ 𝑆) ⊆ 𝐵)
52	51	a1d 25	. . . . . . . 8 ⊢ (∃𝑧 ∈ On ∩ 𝑆 = suc 𝑧 → (𝐴 ⊆ 𝐵 → (𝐴 +𝑜 ∩ 𝑆) ⊆ 𝐵))
53		oalim 7817	. . . . . . . . . . 11 ⊢ ((𝐴 ∈ On ∧ (∩ 𝑆 ∈ V ∧ Lim ∩ 𝑆)) → (𝐴 +𝑜 ∩ 𝑆) = ∪ 𝑧 ∈ ∩ 𝑆(𝐴 +𝑜 𝑧))
54	5, 53	mpan 681	. . . . . . . . . 10 ⊢ ((∩ 𝑆 ∈ V ∧ Lim ∩ 𝑆) → (𝐴 +𝑜 ∩ 𝑆) = ∪ 𝑧 ∈ ∩ 𝑆(𝐴 +𝑜 𝑧))
55		iunss 4717	. . . . . . . . . . 11 ⊢ (∪ 𝑧 ∈ ∩ 𝑆(𝐴 +𝑜 𝑧) ⊆ 𝐵 ↔ ∀𝑧 ∈ ∩ 𝑆(𝐴 +𝑜 𝑧) ⊆ 𝐵)
56	4	onelssi 6016	. . . . . . . . . . . 12 ⊢ ((𝐴 +𝑜 𝑧) ∈ 𝐵 → (𝐴 +𝑜 𝑧) ⊆ 𝐵)
57	44, 56	syl 17	. . . . . . . . . . 11 ⊢ (𝑧 ∈ ∩ 𝑆 → (𝐴 +𝑜 𝑧) ⊆ 𝐵)
58	55, 57	mprgbir 3074	. . . . . . . . . 10 ⊢ ∪ 𝑧 ∈ ∩ 𝑆(𝐴 +𝑜 𝑧) ⊆ 𝐵
59	54, 58	syl6eqss 3815	. . . . . . . . 9 ⊢ ((∩ 𝑆 ∈ V ∧ Lim ∩ 𝑆) → (𝐴 +𝑜 ∩ 𝑆) ⊆ 𝐵)
60	59	a1d 25	. . . . . . . 8 ⊢ ((∩ 𝑆 ∈ V ∧ Lim ∩ 𝑆) → (𝐴 ⊆ 𝐵 → (𝐴 +𝑜 ∩ 𝑆) ⊆ 𝐵))
61	22, 52, 60	3jaoi 1552	. . . . . . 7 ⊢ ((∩ 𝑆 = ∅ ∨ ∃𝑧 ∈ On ∩ 𝑆 = suc 𝑧 ∨ (∩ 𝑆 ∈ V ∧ Lim ∩ 𝑆)) → (𝐴 ⊆ 𝐵 → (𝐴 +𝑜 ∩ 𝑆) ⊆ 𝐵))
62	16, 61	ax-mp 5	. . . . . 6 ⊢ (𝐴 ⊆ 𝐵 → (𝐴 +𝑜 ∩ 𝑆) ⊆ 𝐵)
63	9	rspcev 3461	. . . . . . . . 9 ⊢ ((𝐵 ∈ On ∧ 𝐵 ⊆ (𝐴 +𝑜 𝐵)) → ∃𝑦 ∈ On 𝐵 ⊆ (𝐴 +𝑜 𝑦))
64	4, 7, 63	mp2an 683	. . . . . . . 8 ⊢ ∃𝑦 ∈ On 𝐵 ⊆ (𝐴 +𝑜 𝑦)
65		nfcv 2907	. . . . . . . . . 10 ⊢ Ⅎ𝑦𝐵
66		nfcv 2907	. . . . . . . . . . 11 ⊢ Ⅎ𝑦𝐴
67		nfcv 2907	. . . . . . . . . . 11 ⊢ Ⅎ𝑦 +𝑜
68		nfrab1 3270	. . . . . . . . . . . 12 ⊢ Ⅎ𝑦{𝑦 ∈ On ∣ 𝐵 ⊆ (𝐴 +𝑜 𝑦)}
69	68	nfint 4643	. . . . . . . . . . 11 ⊢ Ⅎ𝑦∩ {𝑦 ∈ On ∣ 𝐵 ⊆ (𝐴 +𝑜 𝑦)}
70	66, 67, 69	nfov 6872	. . . . . . . . . 10 ⊢ Ⅎ𝑦(𝐴 +𝑜 ∩ {𝑦 ∈ On ∣ 𝐵 ⊆ (𝐴 +𝑜 𝑦)})
71	65, 70	nfss 3754	. . . . . . . . 9 ⊢ Ⅎ𝑦 𝐵 ⊆ (𝐴 +𝑜 ∩ {𝑦 ∈ On ∣ 𝐵 ⊆ (𝐴 +𝑜 𝑦)})
72		oveq2 6850	. . . . . . . . . 10 ⊢ (𝑦 = ∩ {𝑦 ∈ On ∣ 𝐵 ⊆ (𝐴 +𝑜 𝑦)} → (𝐴 +𝑜 𝑦) = (𝐴 +𝑜 ∩ {𝑦 ∈ On ∣ 𝐵 ⊆ (𝐴 +𝑜 𝑦)}))
73	72	sseq2d 3793	. . . . . . . . 9 ⊢ (𝑦 = ∩ {𝑦 ∈ On ∣ 𝐵 ⊆ (𝐴 +𝑜 𝑦)} → (𝐵 ⊆ (𝐴 +𝑜 𝑦) ↔ 𝐵 ⊆ (𝐴 +𝑜 ∩ {𝑦 ∈ On ∣ 𝐵 ⊆ (𝐴 +𝑜 𝑦)})))
74	71, 73	onminsb 7197	. . . . . . . 8 ⊢ (∃𝑦 ∈ On 𝐵 ⊆ (𝐴 +𝑜 𝑦) → 𝐵 ⊆ (𝐴 +𝑜 ∩ {𝑦 ∈ On ∣ 𝐵 ⊆ (𝐴 +𝑜 𝑦)}))
75	64, 74	ax-mp 5	. . . . . . 7 ⊢ 𝐵 ⊆ (𝐴 +𝑜 ∩ {𝑦 ∈ On ∣ 𝐵 ⊆ (𝐴 +𝑜 𝑦)})
76	32	oveq2i 6853	. . . . . . 7 ⊢ (𝐴 +𝑜 ∩ 𝑆) = (𝐴 +𝑜 ∩ {𝑦 ∈ On ∣ 𝐵 ⊆ (𝐴 +𝑜 𝑦)})
77	75, 76	sseqtr4i 3798	. . . . . 6 ⊢ 𝐵 ⊆ (𝐴 +𝑜 ∩ 𝑆)
78	62, 77	jctir 516	. . . . 5 ⊢ (𝐴 ⊆ 𝐵 → ((𝐴 +𝑜 ∩ 𝑆) ⊆ 𝐵 ∧ 𝐵 ⊆ (𝐴 +𝑜 ∩ 𝑆)))
79		eqss 3776	. . . . 5 ⊢ ((𝐴 +𝑜 ∩ 𝑆) = 𝐵 ↔ ((𝐴 +𝑜 ∩ 𝑆) ⊆ 𝐵 ∧ 𝐵 ⊆ (𝐴 +𝑜 ∩ 𝑆)))
80	78, 79	sylibr 225	. . . 4 ⊢ (𝐴 ⊆ 𝐵 → (𝐴 +𝑜 ∩ 𝑆) = 𝐵)
81		oveq2 6850	. . . . . 6 ⊢ (𝑥 = ∩ 𝑆 → (𝐴 +𝑜 𝑥) = (𝐴 +𝑜 ∩ 𝑆))
82	81	eqeq1d 2767	. . . . 5 ⊢ (𝑥 = ∩ 𝑆 → ((𝐴 +𝑜 𝑥) = 𝐵 ↔ (𝐴 +𝑜 ∩ 𝑆) = 𝐵))
83	82	rspcev 3461	. . . 4 ⊢ ((∩ 𝑆 ∈ On ∧ (𝐴 +𝑜 ∩ 𝑆) = 𝐵) → ∃𝑥 ∈ On (𝐴 +𝑜 𝑥) = 𝐵)
84	14, 80, 83	sylancr 581	. . 3 ⊢ (𝐴 ⊆ 𝐵 → ∃𝑥 ∈ On (𝐴 +𝑜 𝑥) = 𝐵)
85		eqtr3 2786	. . . . 5 ⊢ (((𝐴 +𝑜 𝑥) = 𝐵 ∧ (𝐴 +𝑜 𝑦) = 𝐵) → (𝐴 +𝑜 𝑥) = (𝐴 +𝑜 𝑦))
86		oacan 7833	. . . . . 6 ⊢ ((𝐴 ∈ On ∧ 𝑥 ∈ On ∧ 𝑦 ∈ On) → ((𝐴 +𝑜 𝑥) = (𝐴 +𝑜 𝑦) ↔ 𝑥 = 𝑦))
87	5, 86	mp3an1 1572	. . . . 5 ⊢ ((𝑥 ∈ On ∧ 𝑦 ∈ On) → ((𝐴 +𝑜 𝑥) = (𝐴 +𝑜 𝑦) ↔ 𝑥 = 𝑦))
88	85, 87	syl5ib 235	. . . 4 ⊢ ((𝑥 ∈ On ∧ 𝑦 ∈ On) → (((𝐴 +𝑜 𝑥) = 𝐵 ∧ (𝐴 +𝑜 𝑦) = 𝐵) → 𝑥 = 𝑦))
89	88	rgen2a 3124	. . 3 ⊢ ∀𝑥 ∈ On ∀𝑦 ∈ On (((𝐴 +𝑜 𝑥) = 𝐵 ∧ (𝐴 +𝑜 𝑦) = 𝐵) → 𝑥 = 𝑦)
90	84, 89	jctir 516	. 2 ⊢ (𝐴 ⊆ 𝐵 → (∃𝑥 ∈ On (𝐴 +𝑜 𝑥) = 𝐵 ∧ ∀𝑥 ∈ On ∀𝑦 ∈ On (((𝐴 +𝑜 𝑥) = 𝐵 ∧ (𝐴 +𝑜 𝑦) = 𝐵) → 𝑥 = 𝑦)))
91		oveq2 6850	. . . 4 ⊢ (𝑥 = 𝑦 → (𝐴 +𝑜 𝑥) = (𝐴 +𝑜 𝑦))
92	91	eqeq1d 2767	. . 3 ⊢ (𝑥 = 𝑦 → ((𝐴 +𝑜 𝑥) = 𝐵 ↔ (𝐴 +𝑜 𝑦) = 𝐵))
93	92	reu4 3559	. 2 ⊢ (∃!𝑥 ∈ On (𝐴 +𝑜 𝑥) = 𝐵 ↔ (∃𝑥 ∈ On (𝐴 +𝑜 𝑥) = 𝐵 ∧ ∀𝑥 ∈ On ∀𝑦 ∈ On (((𝐴 +𝑜 𝑥) = 𝐵 ∧ (𝐴 +𝑜 𝑦) = 𝐵) → 𝑥 = 𝑦)))
94	90, 93	sylibr 225	1 ⊢ (𝐴 ⊆ 𝐵 → ∃!𝑥 ∈ On (𝐴 +𝑜 𝑥) = 𝐵)

Syntax hints:  ¬ wn 3   → wi 4   ↔ wb 197   ∧ wa 384   ∨ w3o 1106   = wceq 1652   ∈ wcel 2155   ≠ wne 2937  ∀wral 3055  ∃wrex 3056  ∃!wreu 3057  {crab 3059  Vcvv 3350   ⊆ wss 3732  ∅c0 4079  ∩ cint 4633  ∪ ciun 4676  Ord word 5907  Oncon0 5908  Lim wlim 5909  suc csuc 5910  (class class class)co 6842   +_𝑜 coa 7761

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1890  ax-4 1904  ax-5 2005  ax-6 2070  ax-7 2105  ax-8 2157  ax-9 2164  ax-10 2183  ax-11 2198  ax-12 2211  ax-13 2352  ax-ext 2743  ax-rep 4930  ax-sep 4941  ax-nul 4949  ax-pow 5001  ax-pr 5062  ax-un 7147

This theorem depends on definitions:  df-bi 198  df-an 385  df-or 874  df-3or 1108  df-3an 1109  df-tru 1656  df-ex 1875  df-nf 1879  df-sb 2063  df-mo 2565  df-eu 2582  df-clab 2752  df-cleq 2758  df-clel 2761  df-nfc 2896  df-ne 2938  df-ral 3060  df-rex 3061  df-reu 3062  df-rmo 3063  df-rab 3064  df-v 3352  df-sbc 3597  df-csb 3692  df-dif 3735  df-un 3737  df-in 3739  df-ss 3746  df-pss 3748  df-nul 4080  df-if 4244  df-pw 4317  df-sn 4335  df-pr 4337  df-tp 4339  df-op 4341  df-uni 4595  df-int 4634  df-iun 4678  df-br 4810  df-opab 4872  df-mpt 4889  df-tr 4912  df-id 5185  df-eprel 5190  df-po 5198  df-so 5199  df-fr 5236  df-we 5238  df-xp 5283  df-rel 5284  df-cnv 5285  df-co 5286  df-dm 5287  df-rn 5288  df-res 5289  df-ima 5290  df-pred 5865  df-ord 5911  df-on 5912  df-lim 5913  df-suc 5914  df-iota 6031  df-fun 6070  df-fn 6071  df-f 6072  df-f1 6073  df-fo 6074  df-f1o 6075  df-fv 6076  df-ov 6845  df-oprab 6846  df-mpt2 6847  df-om 7264  df-wrecs 7610  df-recs 7672  df-rdg 7710  df-oadd 7768

This theorem is referenced by:  oawordeu  7840