Theorem tz9.12lem3 9718

Description: Lemma for tz9.12 9719. (Contributed by NM, 22-Sep-2003.) (Revised by Mario Carneiro, 11-Sep-2015.)

Hypotheses

Ref	Expression
tz9.12lem.1	⊢ 𝐴 ∈ V
tz9.12lem.2	⊢ 𝐹 = (𝑧 ∈ V ↦ ∩ {𝑣 ∈ On ∣ 𝑧 ∈ (𝑅1‘𝑣)})

Assertion

Ref	Expression
tz9.12lem3	⊢ (∀𝑥 ∈ 𝐴 ∃𝑦 ∈ On 𝑥 ∈ (𝑅1‘𝑦) → 𝐴 ∈ (𝑅1‘suc suc ∪ (𝐹 “ 𝐴)))

Distinct variable groups:   𝑥,𝑦,𝑧,𝑣,𝐴   𝑥,𝐹,𝑦

Allowed substitution hints:   𝐹(𝑧,𝑣)

Proof of Theorem tz9.12lem3

Step	Hyp	Ref	Expression
1		tz9.12lem.2	. . . . . . . . . . 11 ⊢ 𝐹 = (𝑧 ∈ V ↦ ∩ {𝑣 ∈ On ∣ 𝑧 ∈ (𝑅1‘𝑣)})
2	1	funmpt2 6539	. . . . . . . . . 10 ⊢ Fun 𝐹
3		fveq2 6840	. . . . . . . . . . . . . . 15 ⊢ (𝑣 = 𝑦 → (𝑅1‘𝑣) = (𝑅1‘𝑦))
4	3	eleq2d 2814	. . . . . . . . . . . . . 14 ⊢ (𝑣 = 𝑦 → (𝑥 ∈ (𝑅1‘𝑣) ↔ 𝑥 ∈ (𝑅1‘𝑦)))
5	4	rspcev 3585	. . . . . . . . . . . . 13 ⊢ ((𝑦 ∈ On ∧ 𝑥 ∈ (𝑅1‘𝑦)) → ∃𝑣 ∈ On 𝑥 ∈ (𝑅1‘𝑣))
6		rabn0 4348	. . . . . . . . . . . . 13 ⊢ ({𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1‘𝑣)} ≠ ∅ ↔ ∃𝑣 ∈ On 𝑥 ∈ (𝑅1‘𝑣))
7	5, 6	sylibr 234	. . . . . . . . . . . 12 ⊢ ((𝑦 ∈ On ∧ 𝑥 ∈ (𝑅1‘𝑦)) → {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1‘𝑣)} ≠ ∅)
8		intex 5294	. . . . . . . . . . . 12 ⊢ ({𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1‘𝑣)} ≠ ∅ ↔ ∩ {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1‘𝑣)} ∈ V)
9	7, 8	sylib 218	. . . . . . . . . . 11 ⊢ ((𝑦 ∈ On ∧ 𝑥 ∈ (𝑅1‘𝑦)) → ∩ {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1‘𝑣)} ∈ V)
10		vex 3448	. . . . . . . . . . . 12 ⊢ 𝑥 ∈ V
11		eleq1w 2811	. . . . . . . . . . . . . . . 16 ⊢ (𝑧 = 𝑥 → (𝑧 ∈ (𝑅1‘𝑣) ↔ 𝑥 ∈ (𝑅1‘𝑣)))
12	11	rabbidv 3410	. . . . . . . . . . . . . . 15 ⊢ (𝑧 = 𝑥 → {𝑣 ∈ On ∣ 𝑧 ∈ (𝑅1‘𝑣)} = {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1‘𝑣)})
13	12	inteqd 4911	. . . . . . . . . . . . . 14 ⊢ (𝑧 = 𝑥 → ∩ {𝑣 ∈ On ∣ 𝑧 ∈ (𝑅1‘𝑣)} = ∩ {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1‘𝑣)})
14	13	eleq1d 2813	. . . . . . . . . . . . 13 ⊢ (𝑧 = 𝑥 → (∩ {𝑣 ∈ On ∣ 𝑧 ∈ (𝑅1‘𝑣)} ∈ V ↔ ∩ {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1‘𝑣)} ∈ V))
15	1	dmmpt 6201	. . . . . . . . . . . . 13 ⊢ dom 𝐹 = {𝑧 ∈ V ∣ ∩ {𝑣 ∈ On ∣ 𝑧 ∈ (𝑅1‘𝑣)} ∈ V}
16	14, 15	elrab2 3659	. . . . . . . . . . . 12 ⊢ (𝑥 ∈ dom 𝐹 ↔ (𝑥 ∈ V ∧ ∩ {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1‘𝑣)} ∈ V))
17	10, 16	mpbiran 709	. . . . . . . . . . 11 ⊢ (𝑥 ∈ dom 𝐹 ↔ ∩ {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1‘𝑣)} ∈ V)
18	9, 17	sylibr 234	. . . . . . . . . 10 ⊢ ((𝑦 ∈ On ∧ 𝑥 ∈ (𝑅1‘𝑦)) → 𝑥 ∈ dom 𝐹)
19		funfvima 7186	. . . . . . . . . 10 ⊢ ((Fun 𝐹 ∧ 𝑥 ∈ dom 𝐹) → (𝑥 ∈ 𝐴 → (𝐹‘𝑥) ∈ (𝐹 “ 𝐴)))
20	2, 18, 19	sylancr 587	. . . . . . . . 9 ⊢ ((𝑦 ∈ On ∧ 𝑥 ∈ (𝑅1‘𝑦)) → (𝑥 ∈ 𝐴 → (𝐹‘𝑥) ∈ (𝐹 “ 𝐴)))
21		tz9.12lem.1	. . . . . . . . . . 11 ⊢ 𝐴 ∈ V
22	21, 1	tz9.12lem2 9717	. . . . . . . . . 10 ⊢ suc ∪ (𝐹 “ 𝐴) ∈ On
23	21, 1	tz9.12lem1 9716	. . . . . . . . . . . 12 ⊢ (𝐹 “ 𝐴) ⊆ On
24		onsucuni 7783	. . . . . . . . . . . 12 ⊢ ((𝐹 “ 𝐴) ⊆ On → (𝐹 “ 𝐴) ⊆ suc ∪ (𝐹 “ 𝐴))
25	23, 24	ax-mp 5	. . . . . . . . . . 11 ⊢ (𝐹 “ 𝐴) ⊆ suc ∪ (𝐹 “ 𝐴)
26	25	sseli 3939	. . . . . . . . . 10 ⊢ ((𝐹‘𝑥) ∈ (𝐹 “ 𝐴) → (𝐹‘𝑥) ∈ suc ∪ (𝐹 “ 𝐴))
27		r1ord2 9710	. . . . . . . . . 10 ⊢ (suc ∪ (𝐹 “ 𝐴) ∈ On → ((𝐹‘𝑥) ∈ suc ∪ (𝐹 “ 𝐴) → (𝑅1‘(𝐹‘𝑥)) ⊆ (𝑅1‘suc ∪ (𝐹 “ 𝐴))))
28	22, 26, 27	mpsyl 68	. . . . . . . . 9 ⊢ ((𝐹‘𝑥) ∈ (𝐹 “ 𝐴) → (𝑅1‘(𝐹‘𝑥)) ⊆ (𝑅1‘suc ∪ (𝐹 “ 𝐴)))
29	20, 28	syl6 35	. . . . . . . 8 ⊢ ((𝑦 ∈ On ∧ 𝑥 ∈ (𝑅1‘𝑦)) → (𝑥 ∈ 𝐴 → (𝑅1‘(𝐹‘𝑥)) ⊆ (𝑅1‘suc ∪ (𝐹 “ 𝐴))))
30	29	imp 406	. . . . . . 7 ⊢ (((𝑦 ∈ On ∧ 𝑥 ∈ (𝑅1‘𝑦)) ∧ 𝑥 ∈ 𝐴) → (𝑅1‘(𝐹‘𝑥)) ⊆ (𝑅1‘suc ∪ (𝐹 “ 𝐴)))
31	13, 1	fvmptg 6948	. . . . . . . . . . . 12 ⊢ ((𝑥 ∈ V ∧ ∩ {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1‘𝑣)} ∈ V) → (𝐹‘𝑥) = ∩ {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1‘𝑣)})
32	10, 31	mpan 690	. . . . . . . . . . 11 ⊢ (∩ {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1‘𝑣)} ∈ V → (𝐹‘𝑥) = ∩ {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1‘𝑣)})
33	8, 32	sylbi 217	. . . . . . . . . 10 ⊢ ({𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1‘𝑣)} ≠ ∅ → (𝐹‘𝑥) = ∩ {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1‘𝑣)})
34		ssrab2 4039	. . . . . . . . . . 11 ⊢ {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1‘𝑣)} ⊆ On
35		onint 7746	. . . . . . . . . . 11 ⊢ (({𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1‘𝑣)} ⊆ On ∧ {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1‘𝑣)} ≠ ∅) → ∩ {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1‘𝑣)} ∈ {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1‘𝑣)})
36	34, 35	mpan 690	. . . . . . . . . 10 ⊢ ({𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1‘𝑣)} ≠ ∅ → ∩ {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1‘𝑣)} ∈ {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1‘𝑣)})
37	33, 36	eqeltrd 2828	. . . . . . . . 9 ⊢ ({𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1‘𝑣)} ≠ ∅ → (𝐹‘𝑥) ∈ {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1‘𝑣)})
38		fveq2 6840	. . . . . . . . . . . 12 ⊢ (𝑦 = (𝐹‘𝑥) → (𝑅1‘𝑦) = (𝑅1‘(𝐹‘𝑥)))
39	38	eleq2d 2814	. . . . . . . . . . 11 ⊢ (𝑦 = (𝐹‘𝑥) → (𝑥 ∈ (𝑅1‘𝑦) ↔ 𝑥 ∈ (𝑅1‘(𝐹‘𝑥))))
40	4	cbvrabv 3413	. . . . . . . . . . 11 ⊢ {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1‘𝑣)} = {𝑦 ∈ On ∣ 𝑥 ∈ (𝑅1‘𝑦)}
41	39, 40	elrab2 3659	. . . . . . . . . 10 ⊢ ((𝐹‘𝑥) ∈ {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1‘𝑣)} ↔ ((𝐹‘𝑥) ∈ On ∧ 𝑥 ∈ (𝑅1‘(𝐹‘𝑥))))
42	41	simprbi 496	. . . . . . . . 9 ⊢ ((𝐹‘𝑥) ∈ {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1‘𝑣)} → 𝑥 ∈ (𝑅1‘(𝐹‘𝑥)))
43	7, 37, 42	3syl 18	. . . . . . . 8 ⊢ ((𝑦 ∈ On ∧ 𝑥 ∈ (𝑅1‘𝑦)) → 𝑥 ∈ (𝑅1‘(𝐹‘𝑥)))
44	43	adantr 480	. . . . . . 7 ⊢ (((𝑦 ∈ On ∧ 𝑥 ∈ (𝑅1‘𝑦)) ∧ 𝑥 ∈ 𝐴) → 𝑥 ∈ (𝑅1‘(𝐹‘𝑥)))
45	30, 44	sseldd 3944	. . . . . 6 ⊢ (((𝑦 ∈ On ∧ 𝑥 ∈ (𝑅1‘𝑦)) ∧ 𝑥 ∈ 𝐴) → 𝑥 ∈ (𝑅1‘suc ∪ (𝐹 “ 𝐴)))
46	45	exp31 419	. . . . 5 ⊢ (𝑦 ∈ On → (𝑥 ∈ (𝑅1‘𝑦) → (𝑥 ∈ 𝐴 → 𝑥 ∈ (𝑅1‘suc ∪ (𝐹 “ 𝐴)))))
47	46	com3r 87	. . . 4 ⊢ (𝑥 ∈ 𝐴 → (𝑦 ∈ On → (𝑥 ∈ (𝑅1‘𝑦) → 𝑥 ∈ (𝑅1‘suc ∪ (𝐹 “ 𝐴)))))
48	47	rexlimdv 3132	. . 3 ⊢ (𝑥 ∈ 𝐴 → (∃𝑦 ∈ On 𝑥 ∈ (𝑅1‘𝑦) → 𝑥 ∈ (𝑅1‘suc ∪ (𝐹 “ 𝐴))))
49	48	ralimia 3063	. 2 ⊢ (∀𝑥 ∈ 𝐴 ∃𝑦 ∈ On 𝑥 ∈ (𝑅1‘𝑦) → ∀𝑥 ∈ 𝐴 𝑥 ∈ (𝑅1‘suc ∪ (𝐹 “ 𝐴)))
50		r1suc 9699	. . . . 5 ⊢ (suc ∪ (𝐹 “ 𝐴) ∈ On → (𝑅1‘suc suc ∪ (𝐹 “ 𝐴)) = 𝒫 (𝑅1‘suc ∪ (𝐹 “ 𝐴)))
51	22, 50	ax-mp 5	. . . 4 ⊢ (𝑅1‘suc suc ∪ (𝐹 “ 𝐴)) = 𝒫 (𝑅1‘suc ∪ (𝐹 “ 𝐴))
52	51	eleq2i 2820	. . 3 ⊢ (𝐴 ∈ (𝑅1‘suc suc ∪ (𝐹 “ 𝐴)) ↔ 𝐴 ∈ 𝒫 (𝑅1‘suc ∪ (𝐹 “ 𝐴)))
53	21	elpw 4563	. . 3 ⊢ (𝐴 ∈ 𝒫 (𝑅1‘suc ∪ (𝐹 “ 𝐴)) ↔ 𝐴 ⊆ (𝑅1‘suc ∪ (𝐹 “ 𝐴)))
54		dfss3 3932	. . 3 ⊢ (𝐴 ⊆ (𝑅1‘suc ∪ (𝐹 “ 𝐴)) ↔ ∀𝑥 ∈ 𝐴 𝑥 ∈ (𝑅1‘suc ∪ (𝐹 “ 𝐴)))
55	52, 53, 54	3bitri 297	. 2 ⊢ (𝐴 ∈ (𝑅1‘suc suc ∪ (𝐹 “ 𝐴)) ↔ ∀𝑥 ∈ 𝐴 𝑥 ∈ (𝑅1‘suc ∪ (𝐹 “ 𝐴)))
56	49, 55	sylibr 234	1 ⊢ (∀𝑥 ∈ 𝐴 ∃𝑦 ∈ On 𝑥 ∈ (𝑅1‘𝑦) → 𝐴 ∈ (𝑅1‘suc suc ∪ (𝐹 “ 𝐴)))

Syntax hints:   → wi 4   ∧ wa 395   = wceq 1540   ∈ wcel 2109   ≠ wne 2925  ∀wral 3044  ∃wrex 3053  {crab 3402  Vcvv 3444   ⊆ wss 3911  ∅c0 4292  𝒫 cpw 4559  ∪ cuni 4867  ∩ cint 4906   ↦ cmpt 5183  dom cdm 5631   “ cima 5634  Oncon0 6320  suc csuc 6322  Fun wfun 6493  ‘cfv 6499  𝑅₁cr1 9691

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1795  ax-4 1809  ax-5 1910  ax-6 1967  ax-7 2008  ax-8 2111  ax-9 2119  ax-10 2142  ax-11 2158  ax-12 2178  ax-ext 2701  ax-rep 5229  ax-sep 5246  ax-nul 5256  ax-pow 5315  ax-pr 5382  ax-un 7691

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3or 1087  df-3an 1088  df-tru 1543  df-fal 1553  df-ex 1780  df-nf 1784  df-sb 2066  df-mo 2533  df-eu 2562  df-clab 2708  df-cleq 2721  df-clel 2803  df-nfc 2878  df-ne 2926  df-ral 3045  df-rex 3054  df-reu 3352  df-rab 3403  df-v 3446  df-sbc 3751  df-csb 3860  df-dif 3914  df-un 3916  df-in 3918  df-ss 3928  df-pss 3931  df-nul 4293  df-if 4485  df-pw 4561  df-sn 4586  df-pr 4588  df-op 4592  df-uni 4868  df-int 4907  df-iun 4953  df-br 5103  df-opab 5165  df-mpt 5184  df-tr 5210  df-id 5526  df-eprel 5531  df-po 5539  df-so 5540  df-fr 5584  df-we 5586  df-xp 5637  df-rel 5638  df-cnv 5639  df-co 5640  df-dm 5641  df-rn 5642  df-res 5643  df-ima 5644  df-pred 6262  df-ord 6323  df-on 6324  df-lim 6325  df-suc 6326  df-iota 6452  df-fun 6501  df-fn 6502  df-f 6503  df-f1 6504  df-fo 6505  df-f1o 6506  df-fv 6507  df-ov 7372  df-om 7823  df-2nd 7948  df-frecs 8237  df-wrecs 8268  df-recs 8317  df-rdg 8355  df-r1 9693

This theorem is referenced by:  tz9.12  9719