Theorem hartogslem1 9524

Description: Lemma for hartogs 9526. (Contributed by Mario Carneiro, 14-Jan-2013.) (Revised by Mario Carneiro, 15-May-2015.)

Hypotheses

Ref	Expression
hartogslem.2	⊢ 𝐹 = {⟨𝑟, 𝑦⟩ ∣ (((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) ∧ (𝑟 ∖ I ) We dom 𝑟) ∧ 𝑦 = dom OrdIso((𝑟 ∖ I ), dom 𝑟))}
hartogslem.3	⊢ 𝑅 = {⟨𝑠, 𝑡⟩ ∣ ∃𝑤 ∈ 𝑦 ∃𝑧 ∈ 𝑦 ((𝑠 = (𝑓‘𝑤) ∧ 𝑡 = (𝑓‘𝑧)) ∧ 𝑤 E 𝑧)}

Assertion

Ref	Expression
hartogslem1	⊢ (dom 𝐹 ⊆ 𝒫 (𝐴 × 𝐴) ∧ Fun 𝐹 ∧ (𝐴 ∈ 𝑉 → ran 𝐹 = {𝑥 ∈ On ∣ 𝑥 ≼ 𝐴}))

Distinct variable groups:   𝑓,𝑠,𝑡,𝑤,𝑦,𝑧   𝑓,𝑟,𝑥,𝐴,𝑦   𝑅,𝑟,𝑥   𝑉,𝑟,𝑦

Allowed substitution hints:   𝐴(𝑧,𝑤,𝑡,𝑠)   𝑅(𝑦,𝑧,𝑤,𝑡,𝑓,𝑠)   𝐹(𝑥,𝑦,𝑧,𝑤,𝑡,𝑓,𝑠,𝑟)   𝑉(𝑥,𝑧,𝑤,𝑡,𝑓,𝑠)

Proof of Theorem hartogslem1

Step	Hyp	Ref	Expression
1		hartogslem.2	. . . . 5 ⊢ 𝐹 = {⟨𝑟, 𝑦⟩ ∣ (((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) ∧ (𝑟 ∖ I ) We dom 𝑟) ∧ 𝑦 = dom OrdIso((𝑟 ∖ I ), dom 𝑟))}
2	1	dmeqi 5899	. . . 4 ⊢ dom 𝐹 = dom {⟨𝑟, 𝑦⟩ ∣ (((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) ∧ (𝑟 ∖ I ) We dom 𝑟) ∧ 𝑦 = dom OrdIso((𝑟 ∖ I ), dom 𝑟))}
3		dmopab 5910	. . . 4 ⊢ dom {⟨𝑟, 𝑦⟩ ∣ (((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) ∧ (𝑟 ∖ I ) We dom 𝑟) ∧ 𝑦 = dom OrdIso((𝑟 ∖ I ), dom 𝑟))} = {𝑟 ∣ ∃𝑦(((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) ∧ (𝑟 ∖ I ) We dom 𝑟) ∧ 𝑦 = dom OrdIso((𝑟 ∖ I ), dom 𝑟))}
4	2, 3	eqtri 2761	. . 3 ⊢ dom 𝐹 = {𝑟 ∣ ∃𝑦(((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) ∧ (𝑟 ∖ I ) We dom 𝑟) ∧ 𝑦 = dom OrdIso((𝑟 ∖ I ), dom 𝑟))}
5		simp3 1139	. . . . . . . 8 ⊢ ((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) → 𝑟 ⊆ (dom 𝑟 × dom 𝑟))
6		simp1 1137	. . . . . . . . 9 ⊢ ((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) → dom 𝑟 ⊆ 𝐴)
7		xpss12 5687	. . . . . . . . 9 ⊢ ((dom 𝑟 ⊆ 𝐴 ∧ dom 𝑟 ⊆ 𝐴) → (dom 𝑟 × dom 𝑟) ⊆ (𝐴 × 𝐴))
8	6, 6, 7	syl2anc 585	. . . . . . . 8 ⊢ ((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) → (dom 𝑟 × dom 𝑟) ⊆ (𝐴 × 𝐴))
9	5, 8	sstrd 3990	. . . . . . 7 ⊢ ((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) → 𝑟 ⊆ (𝐴 × 𝐴))
10		velpw 4603	. . . . . . 7 ⊢ (𝑟 ∈ 𝒫 (𝐴 × 𝐴) ↔ 𝑟 ⊆ (𝐴 × 𝐴))
11	9, 10	sylibr 233	. . . . . 6 ⊢ ((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) → 𝑟 ∈ 𝒫 (𝐴 × 𝐴))
12	11	ad2antrr 725	. . . . 5 ⊢ ((((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) ∧ (𝑟 ∖ I ) We dom 𝑟) ∧ 𝑦 = dom OrdIso((𝑟 ∖ I ), dom 𝑟)) → 𝑟 ∈ 𝒫 (𝐴 × 𝐴))
13	12	exlimiv 1934	. . . 4 ⊢ (∃𝑦(((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) ∧ (𝑟 ∖ I ) We dom 𝑟) ∧ 𝑦 = dom OrdIso((𝑟 ∖ I ), dom 𝑟)) → 𝑟 ∈ 𝒫 (𝐴 × 𝐴))
14	13	abssi 4065	. . 3 ⊢ {𝑟 ∣ ∃𝑦(((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) ∧ (𝑟 ∖ I ) We dom 𝑟) ∧ 𝑦 = dom OrdIso((𝑟 ∖ I ), dom 𝑟))} ⊆ 𝒫 (𝐴 × 𝐴)
15	4, 14	eqsstri 4014	. 2 ⊢ dom 𝐹 ⊆ 𝒫 (𝐴 × 𝐴)
16		funopab4 6577	. . 3 ⊢ Fun {⟨𝑟, 𝑦⟩ ∣ (((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) ∧ (𝑟 ∖ I ) We dom 𝑟) ∧ 𝑦 = dom OrdIso((𝑟 ∖ I ), dom 𝑟))}
17	1	funeqi 6561	. . 3 ⊢ (Fun 𝐹 ↔ Fun {⟨𝑟, 𝑦⟩ ∣ (((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) ∧ (𝑟 ∖ I ) We dom 𝑟) ∧ 𝑦 = dom OrdIso((𝑟 ∖ I ), dom 𝑟))})
18	16, 17	mpbir 230	. 2 ⊢ Fun 𝐹
19	1	rneqi 5931	. . . 4 ⊢ ran 𝐹 = ran {⟨𝑟, 𝑦⟩ ∣ (((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) ∧ (𝑟 ∖ I ) We dom 𝑟) ∧ 𝑦 = dom OrdIso((𝑟 ∖ I ), dom 𝑟))}
20		rnopab 5948	. . . 4 ⊢ ran {⟨𝑟, 𝑦⟩ ∣ (((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) ∧ (𝑟 ∖ I ) We dom 𝑟) ∧ 𝑦 = dom OrdIso((𝑟 ∖ I ), dom 𝑟))} = {𝑦 ∣ ∃𝑟(((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) ∧ (𝑟 ∖ I ) We dom 𝑟) ∧ 𝑦 = dom OrdIso((𝑟 ∖ I ), dom 𝑟))}
21	19, 20	eqtri 2761	. . 3 ⊢ ran 𝐹 = {𝑦 ∣ ∃𝑟(((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) ∧ (𝑟 ∖ I ) We dom 𝑟) ∧ 𝑦 = dom OrdIso((𝑟 ∖ I ), dom 𝑟))}
22		breq1 5147	. . . . . 6 ⊢ (𝑥 = 𝑦 → (𝑥 ≼ 𝐴 ↔ 𝑦 ≼ 𝐴))
23	22	elrab 3681	. . . . 5 ⊢ (𝑦 ∈ {𝑥 ∈ On ∣ 𝑥 ≼ 𝐴} ↔ (𝑦 ∈ On ∧ 𝑦 ≼ 𝐴))
24		f1f 6777	. . . . . . . . . . . . 13 ⊢ (𝑓:𝑦–1-1→𝐴 → 𝑓:𝑦⟶𝐴)
25	24	adantl 483	. . . . . . . . . . . 12 ⊢ ((𝑦 ∈ On ∧ 𝑓:𝑦–1-1→𝐴) → 𝑓:𝑦⟶𝐴)
26	25	frnd 6715	. . . . . . . . . . 11 ⊢ ((𝑦 ∈ On ∧ 𝑓:𝑦–1-1→𝐴) → ran 𝑓 ⊆ 𝐴)
27		resss 6001	. . . . . . . . . . . . . 14 ⊢ ( I ↾ ran 𝑓) ⊆ I
28		ssun2 4171	. . . . . . . . . . . . . 14 ⊢ I ⊆ (𝑅 ∪ I )
29	27, 28	sstri 3989	. . . . . . . . . . . . 13 ⊢ ( I ↾ ran 𝑓) ⊆ (𝑅 ∪ I )
30		idssxp 6041	. . . . . . . . . . . . 13 ⊢ ( I ↾ ran 𝑓) ⊆ (ran 𝑓 × ran 𝑓)
31	29, 30	ssini 4229	. . . . . . . . . . . 12 ⊢ ( I ↾ ran 𝑓) ⊆ ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓))
32	31	a1i 11	. . . . . . . . . . 11 ⊢ ((𝑦 ∈ On ∧ 𝑓:𝑦–1-1→𝐴) → ( I ↾ ran 𝑓) ⊆ ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)))
33		inss2 4227	. . . . . . . . . . . 12 ⊢ ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) ⊆ (ran 𝑓 × ran 𝑓)
34	33	a1i 11	. . . . . . . . . . 11 ⊢ ((𝑦 ∈ On ∧ 𝑓:𝑦–1-1→𝐴) → ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) ⊆ (ran 𝑓 × ran 𝑓))
35	26, 32, 34	3jca 1129	. . . . . . . . . 10 ⊢ ((𝑦 ∈ On ∧ 𝑓:𝑦–1-1→𝐴) → (ran 𝑓 ⊆ 𝐴 ∧ ( I ↾ ran 𝑓) ⊆ ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) ∧ ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) ⊆ (ran 𝑓 × ran 𝑓)))
36		eloni 6366	. . . . . . . . . . . . . 14 ⊢ (𝑦 ∈ On → Ord 𝑦)
37		ordwe 6369	. . . . . . . . . . . . . 14 ⊢ (Ord 𝑦 → E We 𝑦)
38	36, 37	syl 17	. . . . . . . . . . . . 13 ⊢ (𝑦 ∈ On → E We 𝑦)
39	38	adantr 482	. . . . . . . . . . . 12 ⊢ ((𝑦 ∈ On ∧ 𝑓:𝑦–1-1→𝐴) → E We 𝑦)
40		f1f1orn 6834	. . . . . . . . . . . . . . . 16 ⊢ (𝑓:𝑦–1-1→𝐴 → 𝑓:𝑦–1-1-onto→ran 𝑓)
41	40	adantl 483	. . . . . . . . . . . . . . 15 ⊢ ((𝑦 ∈ On ∧ 𝑓:𝑦–1-1→𝐴) → 𝑓:𝑦–1-1-onto→ran 𝑓)
42		hartogslem.3	. . . . . . . . . . . . . . 15 ⊢ 𝑅 = {⟨𝑠, 𝑡⟩ ∣ ∃𝑤 ∈ 𝑦 ∃𝑧 ∈ 𝑦 ((𝑠 = (𝑓‘𝑤) ∧ 𝑡 = (𝑓‘𝑧)) ∧ 𝑤 E 𝑧)}
43		f1oiso 7335	. . . . . . . . . . . . . . 15 ⊢ ((𝑓:𝑦–1-1-onto→ran 𝑓 ∧ 𝑅 = {⟨𝑠, 𝑡⟩ ∣ ∃𝑤 ∈ 𝑦 ∃𝑧 ∈ 𝑦 ((𝑠 = (𝑓‘𝑤) ∧ 𝑡 = (𝑓‘𝑧)) ∧ 𝑤 E 𝑧)}) → 𝑓 Isom E , 𝑅 (𝑦, ran 𝑓))
44	41, 42, 43	sylancl 587	. . . . . . . . . . . . . 14 ⊢ ((𝑦 ∈ On ∧ 𝑓:𝑦–1-1→𝐴) → 𝑓 Isom E , 𝑅 (𝑦, ran 𝑓))
45		isores2 7317	. . . . . . . . . . . . . 14 ⊢ (𝑓 Isom E , 𝑅 (𝑦, ran 𝑓) ↔ 𝑓 Isom E , (𝑅 ∩ (ran 𝑓 × ran 𝑓))(𝑦, ran 𝑓))
46	44, 45	sylib 217	. . . . . . . . . . . . 13 ⊢ ((𝑦 ∈ On ∧ 𝑓:𝑦–1-1→𝐴) → 𝑓 Isom E , (𝑅 ∩ (ran 𝑓 × ran 𝑓))(𝑦, ran 𝑓))
47		isowe 7333	. . . . . . . . . . . . 13 ⊢ (𝑓 Isom E , (𝑅 ∩ (ran 𝑓 × ran 𝑓))(𝑦, ran 𝑓) → ( E We 𝑦 ↔ (𝑅 ∩ (ran 𝑓 × ran 𝑓)) We ran 𝑓))
48	46, 47	syl 17	. . . . . . . . . . . 12 ⊢ ((𝑦 ∈ On ∧ 𝑓:𝑦–1-1→𝐴) → ( E We 𝑦 ↔ (𝑅 ∩ (ran 𝑓 × ran 𝑓)) We ran 𝑓))
49	39, 48	mpbid 231	. . . . . . . . . . 11 ⊢ ((𝑦 ∈ On ∧ 𝑓:𝑦–1-1→𝐴) → (𝑅 ∩ (ran 𝑓 × ran 𝑓)) We ran 𝑓)
50		weso 5663	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝑅 ∩ (ran 𝑓 × ran 𝑓)) We ran 𝑓 → (𝑅 ∩ (ran 𝑓 × ran 𝑓)) Or ran 𝑓)
51	49, 50	syl 17	. . . . . . . . . . . . . . . . 17 ⊢ ((𝑦 ∈ On ∧ 𝑓:𝑦–1-1→𝐴) → (𝑅 ∩ (ran 𝑓 × ran 𝑓)) Or ran 𝑓)
52		inss2 4227	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝑅 ∩ (ran 𝑓 × ran 𝑓)) ⊆ (ran 𝑓 × ran 𝑓)
53	52	brel 5736	. . . . . . . . . . . . . . . . . 18 ⊢ (𝑥(𝑅 ∩ (ran 𝑓 × ran 𝑓))𝑥 → (𝑥 ∈ ran 𝑓 ∧ 𝑥 ∈ ran 𝑓))
54	53	simpld 496	. . . . . . . . . . . . . . . . 17 ⊢ (𝑥(𝑅 ∩ (ran 𝑓 × ran 𝑓))𝑥 → 𝑥 ∈ ran 𝑓)
55		sonr 5607	. . . . . . . . . . . . . . . . 17 ⊢ (((𝑅 ∩ (ran 𝑓 × ran 𝑓)) Or ran 𝑓 ∧ 𝑥 ∈ ran 𝑓) → ¬ 𝑥(𝑅 ∩ (ran 𝑓 × ran 𝑓))𝑥)
56	51, 54, 55	syl2an 597	. . . . . . . . . . . . . . . 16 ⊢ (((𝑦 ∈ On ∧ 𝑓:𝑦–1-1→𝐴) ∧ 𝑥(𝑅 ∩ (ran 𝑓 × ran 𝑓))𝑥) → ¬ 𝑥(𝑅 ∩ (ran 𝑓 × ran 𝑓))𝑥)
57	56	pm2.01da 798	. . . . . . . . . . . . . . 15 ⊢ ((𝑦 ∈ On ∧ 𝑓:𝑦–1-1→𝐴) → ¬ 𝑥(𝑅 ∩ (ran 𝑓 × ran 𝑓))𝑥)
58	57	alrimiv 1931	. . . . . . . . . . . . . 14 ⊢ ((𝑦 ∈ On ∧ 𝑓:𝑦–1-1→𝐴) → ∀𝑥 ¬ 𝑥(𝑅 ∩ (ran 𝑓 × ran 𝑓))𝑥)
59		intirr 6111	. . . . . . . . . . . . . 14 ⊢ (((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∩ I ) = ∅ ↔ ∀𝑥 ¬ 𝑥(𝑅 ∩ (ran 𝑓 × ran 𝑓))𝑥)
60	58, 59	sylibr 233	. . . . . . . . . . . . 13 ⊢ ((𝑦 ∈ On ∧ 𝑓:𝑦–1-1→𝐴) → ((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∩ I ) = ∅)
61		disj3 4451	. . . . . . . . . . . . 13 ⊢ (((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∩ I ) = ∅ ↔ (𝑅 ∩ (ran 𝑓 × ran 𝑓)) = ((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ))
62	60, 61	sylib 217	. . . . . . . . . . . 12 ⊢ ((𝑦 ∈ On ∧ 𝑓:𝑦–1-1→𝐴) → (𝑅 ∩ (ran 𝑓 × ran 𝑓)) = ((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ))
63		weeq1 5660	. . . . . . . . . . . 12 ⊢ ((𝑅 ∩ (ran 𝑓 × ran 𝑓)) = ((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ) → ((𝑅 ∩ (ran 𝑓 × ran 𝑓)) We ran 𝑓 ↔ ((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ) We ran 𝑓))
64	62, 63	syl 17	. . . . . . . . . . 11 ⊢ ((𝑦 ∈ On ∧ 𝑓:𝑦–1-1→𝐴) → ((𝑅 ∩ (ran 𝑓 × ran 𝑓)) We ran 𝑓 ↔ ((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ) We ran 𝑓))
65	49, 64	mpbid 231	. . . . . . . . . 10 ⊢ ((𝑦 ∈ On ∧ 𝑓:𝑦–1-1→𝐴) → ((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ) We ran 𝑓)
66	36	adantr 482	. . . . . . . . . . . 12 ⊢ ((𝑦 ∈ On ∧ 𝑓:𝑦–1-1→𝐴) → Ord 𝑦)
67		isoeq3 7303	. . . . . . . . . . . . . 14 ⊢ ((𝑅 ∩ (ran 𝑓 × ran 𝑓)) = ((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ) → (𝑓 Isom E , (𝑅 ∩ (ran 𝑓 × ran 𝑓))(𝑦, ran 𝑓) ↔ 𝑓 Isom E , ( (𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I )(𝑦, ran 𝑓)))
68	62, 67	syl 17	. . . . . . . . . . . . 13 ⊢ ((𝑦 ∈ On ∧ 𝑓:𝑦–1-1→𝐴) → (𝑓 Isom E , (𝑅 ∩ (ran 𝑓 × ran 𝑓))(𝑦, ran 𝑓) ↔ 𝑓 Isom E , ( (𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I )(𝑦, ran 𝑓)))
69	46, 68	mpbid 231	. . . . . . . . . . . 12 ⊢ ((𝑦 ∈ On ∧ 𝑓:𝑦–1-1→𝐴) → 𝑓 Isom E , ( (𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I )(𝑦, ran 𝑓))
70		vex 3479	. . . . . . . . . . . . . . 15 ⊢ 𝑓 ∈ V
71	70	rnex 7890	. . . . . . . . . . . . . 14 ⊢ ran 𝑓 ∈ V
72		exse 5635	. . . . . . . . . . . . . 14 ⊢ (ran 𝑓 ∈ V → ((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ) Se ran 𝑓)
73	71, 72	ax-mp 5	. . . . . . . . . . . . 13 ⊢ ((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ) Se ran 𝑓
74		eqid 2733	. . . . . . . . . . . . . 14 ⊢ OrdIso(((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ), ran 𝑓) = OrdIso(((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ), ran 𝑓)
75	74	oieu 9521	. . . . . . . . . . . . 13 ⊢ ((((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ) We ran 𝑓 ∧ ((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ) Se ran 𝑓) → ((Ord 𝑦 ∧ 𝑓 Isom E , ( (𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I )(𝑦, ran 𝑓)) ↔ (𝑦 = dom OrdIso(((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ), ran 𝑓) ∧ 𝑓 = OrdIso(((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ), ran 𝑓))))
76	65, 73, 75	sylancl 587	. . . . . . . . . . . 12 ⊢ ((𝑦 ∈ On ∧ 𝑓:𝑦–1-1→𝐴) → ((Ord 𝑦 ∧ 𝑓 Isom E , ( (𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I )(𝑦, ran 𝑓)) ↔ (𝑦 = dom OrdIso(((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ), ran 𝑓) ∧ 𝑓 = OrdIso(((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ), ran 𝑓))))
77	66, 69, 76	mpbi2and 711	. . . . . . . . . . 11 ⊢ ((𝑦 ∈ On ∧ 𝑓:𝑦–1-1→𝐴) → (𝑦 = dom OrdIso(((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ), ran 𝑓) ∧ 𝑓 = OrdIso(((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ), ran 𝑓)))
78	77	simpld 496	. . . . . . . . . 10 ⊢ ((𝑦 ∈ On ∧ 𝑓:𝑦–1-1→𝐴) → 𝑦 = dom OrdIso(((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ), ran 𝑓))
79	71, 71	xpex 7727	. . . . . . . . . . . 12 ⊢ (ran 𝑓 × ran 𝑓) ∈ V
80	79	inex2 5314	. . . . . . . . . . 11 ⊢ ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) ∈ V
81		sseq1 4005	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝑟 = ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) → (𝑟 ⊆ (ran 𝑓 × ran 𝑓) ↔ ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) ⊆ (ran 𝑓 × ran 𝑓)))
82	33, 81	mpbiri 258	. . . . . . . . . . . . . . . . . 18 ⊢ (𝑟 = ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) → 𝑟 ⊆ (ran 𝑓 × ran 𝑓))
83		dmss 5897	. . . . . . . . . . . . . . . . . 18 ⊢ (𝑟 ⊆ (ran 𝑓 × ran 𝑓) → dom 𝑟 ⊆ dom (ran 𝑓 × ran 𝑓))
84	82, 83	syl 17	. . . . . . . . . . . . . . . . 17 ⊢ (𝑟 = ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) → dom 𝑟 ⊆ dom (ran 𝑓 × ran 𝑓))
85		dmxpid 5924	. . . . . . . . . . . . . . . . 17 ⊢ dom (ran 𝑓 × ran 𝑓) = ran 𝑓
86	84, 85	sseqtrdi 4030	. . . . . . . . . . . . . . . 16 ⊢ (𝑟 = ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) → dom 𝑟 ⊆ ran 𝑓)
87		dmresi 6044	. . . . . . . . . . . . . . . . 17 ⊢ dom ( I ↾ ran 𝑓) = ran 𝑓
88		sseq2 4006	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝑟 = ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) → (( I ↾ ran 𝑓) ⊆ 𝑟 ↔ ( I ↾ ran 𝑓) ⊆ ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓))))
89	31, 88	mpbiri 258	. . . . . . . . . . . . . . . . . 18 ⊢ (𝑟 = ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) → ( I ↾ ran 𝑓) ⊆ 𝑟)
90		dmss 5897	. . . . . . . . . . . . . . . . . 18 ⊢ (( I ↾ ran 𝑓) ⊆ 𝑟 → dom ( I ↾ ran 𝑓) ⊆ dom 𝑟)
91	89, 90	syl 17	. . . . . . . . . . . . . . . . 17 ⊢ (𝑟 = ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) → dom ( I ↾ ran 𝑓) ⊆ dom 𝑟)
92	87, 91	eqsstrrid 4029	. . . . . . . . . . . . . . . 16 ⊢ (𝑟 = ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) → ran 𝑓 ⊆ dom 𝑟)
93	86, 92	eqssd 3997	. . . . . . . . . . . . . . 15 ⊢ (𝑟 = ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) → dom 𝑟 = ran 𝑓)
94	93	sseq1d 4011	. . . . . . . . . . . . . 14 ⊢ (𝑟 = ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) → (dom 𝑟 ⊆ 𝐴 ↔ ran 𝑓 ⊆ 𝐴))
95	93	reseq2d 5976	. . . . . . . . . . . . . . 15 ⊢ (𝑟 = ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) → ( I ↾ dom 𝑟) = ( I ↾ ran 𝑓))
96		id 22	. . . . . . . . . . . . . . 15 ⊢ (𝑟 = ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) → 𝑟 = ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)))
97	95, 96	sseq12d 4013	. . . . . . . . . . . . . 14 ⊢ (𝑟 = ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) → (( I ↾ dom 𝑟) ⊆ 𝑟 ↔ ( I ↾ ran 𝑓) ⊆ ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓))))
98	93	sqxpeqd 5704	. . . . . . . . . . . . . . 15 ⊢ (𝑟 = ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) → (dom 𝑟 × dom 𝑟) = (ran 𝑓 × ran 𝑓))
99	96, 98	sseq12d 4013	. . . . . . . . . . . . . 14 ⊢ (𝑟 = ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) → (𝑟 ⊆ (dom 𝑟 × dom 𝑟) ↔ ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) ⊆ (ran 𝑓 × ran 𝑓)))
100	94, 97, 99	3anbi123d 1437	. . . . . . . . . . . . 13 ⊢ (𝑟 = ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) → ((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) ↔ (ran 𝑓 ⊆ 𝐴 ∧ ( I ↾ ran 𝑓) ⊆ ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) ∧ ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) ⊆ (ran 𝑓 × ran 𝑓))))
101		difeq1 4113	. . . . . . . . . . . . . . . 16 ⊢ (𝑟 = ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) → (𝑟 ∖ I ) = (((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) ∖ I ))
102		difun2 4478	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝑅 ∪ I ) ∖ I ) = (𝑅 ∖ I )
103	102	ineq1i 4206	. . . . . . . . . . . . . . . . 17 ⊢ (((𝑅 ∪ I ) ∖ I ) ∩ (ran 𝑓 × ran 𝑓)) = ((𝑅 ∖ I ) ∩ (ran 𝑓 × ran 𝑓))
104		indif1 4269	. . . . . . . . . . . . . . . . 17 ⊢ (((𝑅 ∪ I ) ∖ I ) ∩ (ran 𝑓 × ran 𝑓)) = (((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) ∖ I )
105		indif1 4269	. . . . . . . . . . . . . . . . 17 ⊢ ((𝑅 ∖ I ) ∩ (ran 𝑓 × ran 𝑓)) = ((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I )
106	103, 104, 105	3eqtr3i 2769	. . . . . . . . . . . . . . . 16 ⊢ (((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) ∖ I ) = ((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I )
107	101, 106	eqtrdi 2789	. . . . . . . . . . . . . . 15 ⊢ (𝑟 = ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) → (𝑟 ∖ I ) = ((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ))
108		weeq1 5660	. . . . . . . . . . . . . . 15 ⊢ ((𝑟 ∖ I ) = ((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ) → ((𝑟 ∖ I ) We dom 𝑟 ↔ ((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ) We dom 𝑟))
109	107, 108	syl 17	. . . . . . . . . . . . . 14 ⊢ (𝑟 = ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) → ((𝑟 ∖ I ) We dom 𝑟 ↔ ((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ) We dom 𝑟))
110		weeq2 5661	. . . . . . . . . . . . . . 15 ⊢ (dom 𝑟 = ran 𝑓 → (((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ) We dom 𝑟 ↔ ((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ) We ran 𝑓))
111	93, 110	syl 17	. . . . . . . . . . . . . 14 ⊢ (𝑟 = ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) → (((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ) We dom 𝑟 ↔ ((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ) We ran 𝑓))
112	109, 111	bitrd 279	. . . . . . . . . . . . 13 ⊢ (𝑟 = ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) → ((𝑟 ∖ I ) We dom 𝑟 ↔ ((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ) We ran 𝑓))
113	100, 112	anbi12d 632	. . . . . . . . . . . 12 ⊢ (𝑟 = ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) → (((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) ∧ (𝑟 ∖ I ) We dom 𝑟) ↔ ((ran 𝑓 ⊆ 𝐴 ∧ ( I ↾ ran 𝑓) ⊆ ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) ∧ ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) ⊆ (ran 𝑓 × ran 𝑓)) ∧ ((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ) We ran 𝑓)))
114		oieq1 9494	. . . . . . . . . . . . . . . 16 ⊢ ((𝑟 ∖ I ) = ((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ) → OrdIso((𝑟 ∖ I ), dom 𝑟) = OrdIso(((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ), dom 𝑟))
115	107, 114	syl 17	. . . . . . . . . . . . . . 15 ⊢ (𝑟 = ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) → OrdIso((𝑟 ∖ I ), dom 𝑟) = OrdIso(((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ), dom 𝑟))
116		oieq2 9495	. . . . . . . . . . . . . . . 16 ⊢ (dom 𝑟 = ran 𝑓 → OrdIso(((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ), dom 𝑟) = OrdIso(((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ), ran 𝑓))
117	93, 116	syl 17	. . . . . . . . . . . . . . 15 ⊢ (𝑟 = ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) → OrdIso(((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ), dom 𝑟) = OrdIso(((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ), ran 𝑓))
118	115, 117	eqtrd 2773	. . . . . . . . . . . . . 14 ⊢ (𝑟 = ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) → OrdIso((𝑟 ∖ I ), dom 𝑟) = OrdIso(((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ), ran 𝑓))
119	118	dmeqd 5900	. . . . . . . . . . . . 13 ⊢ (𝑟 = ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) → dom OrdIso((𝑟 ∖ I ), dom 𝑟) = dom OrdIso(((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ), ran 𝑓))
120	119	eqeq2d 2744	. . . . . . . . . . . 12 ⊢ (𝑟 = ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) → (𝑦 = dom OrdIso((𝑟 ∖ I ), dom 𝑟) ↔ 𝑦 = dom OrdIso(((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ), ran 𝑓)))
121	113, 120	anbi12d 632	. . . . . . . . . . 11 ⊢ (𝑟 = ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) → ((((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) ∧ (𝑟 ∖ I ) We dom 𝑟) ∧ 𝑦 = dom OrdIso((𝑟 ∖ I ), dom 𝑟)) ↔ (((ran 𝑓 ⊆ 𝐴 ∧ ( I ↾ ran 𝑓) ⊆ ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) ∧ ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) ⊆ (ran 𝑓 × ran 𝑓)) ∧ ((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ) We ran 𝑓) ∧ 𝑦 = dom OrdIso(((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ), ran 𝑓))))
122	80, 121	spcev 3595	. . . . . . . . . 10 ⊢ ((((ran 𝑓 ⊆ 𝐴 ∧ ( I ↾ ran 𝑓) ⊆ ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) ∧ ((𝑅 ∪ I ) ∩ (ran 𝑓 × ran 𝑓)) ⊆ (ran 𝑓 × ran 𝑓)) ∧ ((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ) We ran 𝑓) ∧ 𝑦 = dom OrdIso(((𝑅 ∩ (ran 𝑓 × ran 𝑓)) ∖ I ), ran 𝑓)) → ∃𝑟(((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) ∧ (𝑟 ∖ I ) We dom 𝑟) ∧ 𝑦 = dom OrdIso((𝑟 ∖ I ), dom 𝑟)))
123	35, 65, 78, 122	syl21anc 837	. . . . . . . . 9 ⊢ ((𝑦 ∈ On ∧ 𝑓:𝑦–1-1→𝐴) → ∃𝑟(((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) ∧ (𝑟 ∖ I ) We dom 𝑟) ∧ 𝑦 = dom OrdIso((𝑟 ∖ I ), dom 𝑟)))
124	123	ex 414	. . . . . . . 8 ⊢ (𝑦 ∈ On → (𝑓:𝑦–1-1→𝐴 → ∃𝑟(((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) ∧ (𝑟 ∖ I ) We dom 𝑟) ∧ 𝑦 = dom OrdIso((𝑟 ∖ I ), dom 𝑟))))
125	124	exlimdv 1937	. . . . . . 7 ⊢ (𝑦 ∈ On → (∃𝑓 𝑓:𝑦–1-1→𝐴 → ∃𝑟(((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) ∧ (𝑟 ∖ I ) We dom 𝑟) ∧ 𝑦 = dom OrdIso((𝑟 ∖ I ), dom 𝑟))))
126		brdomi 8942	. . . . . . 7 ⊢ (𝑦 ≼ 𝐴 → ∃𝑓 𝑓:𝑦–1-1→𝐴)
127	125, 126	impel 507	. . . . . 6 ⊢ ((𝑦 ∈ On ∧ 𝑦 ≼ 𝐴) → ∃𝑟(((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) ∧ (𝑟 ∖ I ) We dom 𝑟) ∧ 𝑦 = dom OrdIso((𝑟 ∖ I ), dom 𝑟)))
128		simpr 486	. . . . . . . . . . 11 ⊢ ((((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) ∧ (𝑟 ∖ I ) We dom 𝑟) ∧ 𝑦 = dom OrdIso((𝑟 ∖ I ), dom 𝑟)) → 𝑦 = dom OrdIso((𝑟 ∖ I ), dom 𝑟))
129		vex 3479	. . . . . . . . . . . . 13 ⊢ 𝑟 ∈ V
130	129	dmex 7889	. . . . . . . . . . . 12 ⊢ dom 𝑟 ∈ V
131		eqid 2733	. . . . . . . . . . . . 13 ⊢ OrdIso((𝑟 ∖ I ), dom 𝑟) = OrdIso((𝑟 ∖ I ), dom 𝑟)
132	131	oion 9518	. . . . . . . . . . . 12 ⊢ (dom 𝑟 ∈ V → dom OrdIso((𝑟 ∖ I ), dom 𝑟) ∈ On)
133	130, 132	ax-mp 5	. . . . . . . . . . 11 ⊢ dom OrdIso((𝑟 ∖ I ), dom 𝑟) ∈ On
134	128, 133	eqeltrdi 2842	. . . . . . . . . 10 ⊢ ((((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) ∧ (𝑟 ∖ I ) We dom 𝑟) ∧ 𝑦 = dom OrdIso((𝑟 ∖ I ), dom 𝑟)) → 𝑦 ∈ On)
135	134	adantl 483	. . . . . . . . 9 ⊢ ((𝐴 ∈ 𝑉 ∧ (((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) ∧ (𝑟 ∖ I ) We dom 𝑟) ∧ 𝑦 = dom OrdIso((𝑟 ∖ I ), dom 𝑟))) → 𝑦 ∈ On)
136		simplr 768	. . . . . . . . . . . 12 ⊢ ((((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) ∧ (𝑟 ∖ I ) We dom 𝑟) ∧ 𝑦 = dom OrdIso((𝑟 ∖ I ), dom 𝑟)) → (𝑟 ∖ I ) We dom 𝑟)
137	131	oien 9520	. . . . . . . . . . . 12 ⊢ ((dom 𝑟 ∈ V ∧ (𝑟 ∖ I ) We dom 𝑟) → dom OrdIso((𝑟 ∖ I ), dom 𝑟) ≈ dom 𝑟)
138	130, 136, 137	sylancr 588	. . . . . . . . . . 11 ⊢ ((((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) ∧ (𝑟 ∖ I ) We dom 𝑟) ∧ 𝑦 = dom OrdIso((𝑟 ∖ I ), dom 𝑟)) → dom OrdIso((𝑟 ∖ I ), dom 𝑟) ≈ dom 𝑟)
139	128, 138	eqbrtrd 5166	. . . . . . . . . 10 ⊢ ((((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) ∧ (𝑟 ∖ I ) We dom 𝑟) ∧ 𝑦 = dom OrdIso((𝑟 ∖ I ), dom 𝑟)) → 𝑦 ≈ dom 𝑟)
140		ssdomg 8984	. . . . . . . . . . 11 ⊢ (𝐴 ∈ 𝑉 → (dom 𝑟 ⊆ 𝐴 → dom 𝑟 ≼ 𝐴))
141		simpll1 1213	. . . . . . . . . . 11 ⊢ ((((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) ∧ (𝑟 ∖ I ) We dom 𝑟) ∧ 𝑦 = dom OrdIso((𝑟 ∖ I ), dom 𝑟)) → dom 𝑟 ⊆ 𝐴)
142	140, 141	impel 507	. . . . . . . . . 10 ⊢ ((𝐴 ∈ 𝑉 ∧ (((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) ∧ (𝑟 ∖ I ) We dom 𝑟) ∧ 𝑦 = dom OrdIso((𝑟 ∖ I ), dom 𝑟))) → dom 𝑟 ≼ 𝐴)
143		endomtr 8996	. . . . . . . . . 10 ⊢ ((𝑦 ≈ dom 𝑟 ∧ dom 𝑟 ≼ 𝐴) → 𝑦 ≼ 𝐴)
144	139, 142, 143	syl2an2 685	. . . . . . . . 9 ⊢ ((𝐴 ∈ 𝑉 ∧ (((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) ∧ (𝑟 ∖ I ) We dom 𝑟) ∧ 𝑦 = dom OrdIso((𝑟 ∖ I ), dom 𝑟))) → 𝑦 ≼ 𝐴)
145	135, 144	jca 513	. . . . . . . 8 ⊢ ((𝐴 ∈ 𝑉 ∧ (((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) ∧ (𝑟 ∖ I ) We dom 𝑟) ∧ 𝑦 = dom OrdIso((𝑟 ∖ I ), dom 𝑟))) → (𝑦 ∈ On ∧ 𝑦 ≼ 𝐴))
146	145	ex 414	. . . . . . 7 ⊢ (𝐴 ∈ 𝑉 → ((((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) ∧ (𝑟 ∖ I ) We dom 𝑟) ∧ 𝑦 = dom OrdIso((𝑟 ∖ I ), dom 𝑟)) → (𝑦 ∈ On ∧ 𝑦 ≼ 𝐴)))
147	146	exlimdv 1937	. . . . . 6 ⊢ (𝐴 ∈ 𝑉 → (∃𝑟(((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) ∧ (𝑟 ∖ I ) We dom 𝑟) ∧ 𝑦 = dom OrdIso((𝑟 ∖ I ), dom 𝑟)) → (𝑦 ∈ On ∧ 𝑦 ≼ 𝐴)))
148	127, 147	impbid2 225	. . . . 5 ⊢ (𝐴 ∈ 𝑉 → ((𝑦 ∈ On ∧ 𝑦 ≼ 𝐴) ↔ ∃𝑟(((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) ∧ (𝑟 ∖ I ) We dom 𝑟) ∧ 𝑦 = dom OrdIso((𝑟 ∖ I ), dom 𝑟))))
149	23, 148	bitrid 283	. . . 4 ⊢ (𝐴 ∈ 𝑉 → (𝑦 ∈ {𝑥 ∈ On ∣ 𝑥 ≼ 𝐴} ↔ ∃𝑟(((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) ∧ (𝑟 ∖ I ) We dom 𝑟) ∧ 𝑦 = dom OrdIso((𝑟 ∖ I ), dom 𝑟))))
150	149	eqabdv 2868	. . 3 ⊢ (𝐴 ∈ 𝑉 → {𝑥 ∈ On ∣ 𝑥 ≼ 𝐴} = {𝑦 ∣ ∃𝑟(((dom 𝑟 ⊆ 𝐴 ∧ ( I ↾ dom 𝑟) ⊆ 𝑟 ∧ 𝑟 ⊆ (dom 𝑟 × dom 𝑟)) ∧ (𝑟 ∖ I ) We dom 𝑟) ∧ 𝑦 = dom OrdIso((𝑟 ∖ I ), dom 𝑟))})
151	21, 150	eqtr4id 2792	. 2 ⊢ (𝐴 ∈ 𝑉 → ran 𝐹 = {𝑥 ∈ On ∣ 𝑥 ≼ 𝐴})
152	15, 18, 151	3pm3.2i 1340	1 ⊢ (dom 𝐹 ⊆ 𝒫 (𝐴 × 𝐴) ∧ Fun 𝐹 ∧ (𝐴 ∈ 𝑉 → ran 𝐹 = {𝑥 ∈ On ∣ 𝑥 ≼ 𝐴}))

Syntax hints:  ¬ wn 3   → wi 4   ↔ wb 205   ∧ wa 397   ∧ w3a 1088  ∀wal 1540   = wceq 1542  ∃wex 1782   ∈ wcel 2107  {cab 2710  ∃wrex 3071  {crab 3433  Vcvv 3475   ∖ cdif 3943   ∪ cun 3944   ∩ cin 3945   ⊆ wss 3946  ∅c0 4320  𝒫 cpw 4598   class class class wbr 5144  {copab 5206   I cid 5569   E cep 5575   Or wor 5583   Se wse 5625   We wwe 5626   × cxp 5670  dom cdm 5672  ran crn 5673   ↾ cres 5674  Ord word 6355  Oncon0 6356  Fun wfun 6529  ⟶wf 6531  –1-1→wf1 6532  –1-1-onto→wf1o 6534  ‘cfv 6535   Isom wiso 6536   ≈ cen 8924   ≼ cdom 8925  OrdIsocoi 9491

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1798  ax-4 1812  ax-5 1914  ax-6 1972  ax-7 2012  ax-8 2109  ax-9 2117  ax-10 2138  ax-11 2155  ax-12 2172  ax-ext 2704  ax-rep 5281  ax-sep 5295  ax-nul 5302  ax-pow 5359  ax-pr 5423  ax-un 7712

This theorem depends on definitions:  df-bi 206  df-an 398  df-or 847  df-3or 1089  df-3an 1090  df-tru 1545  df-fal 1555  df-ex 1783  df-nf 1787  df-sb 2069  df-mo 2535  df-eu 2564  df-clab 2711  df-cleq 2725  df-clel 2811  df-nfc 2886  df-ne 2942  df-ral 3063  df-rex 3072  df-rmo 3377  df-reu 3378  df-rab 3434  df-v 3477  df-sbc 3776  df-csb 3892  df-dif 3949  df-un 3951  df-in 3953  df-ss 3963  df-pss 3965  df-nul 4321  df-if 4525  df-pw 4600  df-sn 4625  df-pr 4627  df-op 4631  df-uni 4905  df-iun 4995  df-br 5145  df-opab 5207  df-mpt 5228  df-tr 5262  df-id 5570  df-eprel 5576  df-po 5584  df-so 5585  df-fr 5627  df-se 5628  df-we 5629  df-xp 5678  df-rel 5679  df-cnv 5680  df-co 5681  df-dm 5682  df-rn 5683  df-res 5684  df-ima 5685  df-pred 6292  df-ord 6359  df-on 6360  df-lim 6361  df-suc 6362  df-iota 6487  df-fun 6537  df-fn 6538  df-f 6539  df-f1 6540  df-fo 6541  df-f1o 6542  df-fv 6543  df-isom 6544  df-riota 7352  df-ov 7399  df-2nd 7963  df-frecs 8253  df-wrecs 8284  df-recs 8358  df-en 8928  df-dom 8929  df-oi 9492

This theorem is referenced by:  hartogslem2  9525  harwdom  9573