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Theorem tz9.12lem3 8599
Description: Lemma for tz9.12 8600. (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 ∈ (𝑅1𝑣)})
Assertion
Ref Expression
tz9.12lem3 (∀𝑥𝐴𝑦 ∈ On 𝑥 ∈ (𝑅1𝑦) → 𝐴 ∈ (𝑅1‘suc suc (𝐹𝐴)))
Distinct variable groups:   𝑥,𝑦,𝑧,𝑣,𝐴   𝑥,𝐹,𝑦
Allowed substitution hints:   𝐹(𝑧,𝑣)

Proof of Theorem tz9.12lem3
StepHypRef Expression
1 tz9.12lem.2 . . . . . . . . . . 11 𝐹 = (𝑧 ∈ V ↦ {𝑣 ∈ On ∣ 𝑧 ∈ (𝑅1𝑣)})
21funmpt2 5887 . . . . . . . . . 10 Fun 𝐹
3 fveq2 6150 . . . . . . . . . . . . . . 15 (𝑣 = 𝑦 → (𝑅1𝑣) = (𝑅1𝑦))
43eleq2d 2684 . . . . . . . . . . . . . 14 (𝑣 = 𝑦 → (𝑥 ∈ (𝑅1𝑣) ↔ 𝑥 ∈ (𝑅1𝑦)))
54rspcev 3295 . . . . . . . . . . . . 13 ((𝑦 ∈ On ∧ 𝑥 ∈ (𝑅1𝑦)) → ∃𝑣 ∈ On 𝑥 ∈ (𝑅1𝑣))
6 rabn0 3934 . . . . . . . . . . . . 13 ({𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1𝑣)} ≠ ∅ ↔ ∃𝑣 ∈ On 𝑥 ∈ (𝑅1𝑣))
75, 6sylibr 224 . . . . . . . . . . . 12 ((𝑦 ∈ On ∧ 𝑥 ∈ (𝑅1𝑦)) → {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1𝑣)} ≠ ∅)
8 intex 4782 . . . . . . . . . . . 12 ({𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1𝑣)} ≠ ∅ ↔ {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1𝑣)} ∈ V)
97, 8sylib 208 . . . . . . . . . . 11 ((𝑦 ∈ On ∧ 𝑥 ∈ (𝑅1𝑦)) → {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1𝑣)} ∈ V)
10 vex 3189 . . . . . . . . . . . 12 𝑥 ∈ V
11 eleq1 2686 . . . . . . . . . . . . . . . 16 (𝑧 = 𝑥 → (𝑧 ∈ (𝑅1𝑣) ↔ 𝑥 ∈ (𝑅1𝑣)))
1211rabbidv 3177 . . . . . . . . . . . . . . 15 (𝑧 = 𝑥 → {𝑣 ∈ On ∣ 𝑧 ∈ (𝑅1𝑣)} = {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1𝑣)})
1312inteqd 4447 . . . . . . . . . . . . . 14 (𝑧 = 𝑥 {𝑣 ∈ On ∣ 𝑧 ∈ (𝑅1𝑣)} = {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1𝑣)})
1413eleq1d 2683 . . . . . . . . . . . . 13 (𝑧 = 𝑥 → ( {𝑣 ∈ On ∣ 𝑧 ∈ (𝑅1𝑣)} ∈ V ↔ {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1𝑣)} ∈ V))
151dmmpt 5591 . . . . . . . . . . . . 13 dom 𝐹 = {𝑧 ∈ V ∣ {𝑣 ∈ On ∣ 𝑧 ∈ (𝑅1𝑣)} ∈ V}
1614, 15elrab2 3349 . . . . . . . . . . . 12 (𝑥 ∈ dom 𝐹 ↔ (𝑥 ∈ V ∧ {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1𝑣)} ∈ V))
1710, 16mpbiran 952 . . . . . . . . . . 11 (𝑥 ∈ dom 𝐹 {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1𝑣)} ∈ V)
189, 17sylibr 224 . . . . . . . . . 10 ((𝑦 ∈ On ∧ 𝑥 ∈ (𝑅1𝑦)) → 𝑥 ∈ dom 𝐹)
19 funfvima 6449 . . . . . . . . . 10 ((Fun 𝐹𝑥 ∈ dom 𝐹) → (𝑥𝐴 → (𝐹𝑥) ∈ (𝐹𝐴)))
202, 18, 19sylancr 694 . . . . . . . . 9 ((𝑦 ∈ On ∧ 𝑥 ∈ (𝑅1𝑦)) → (𝑥𝐴 → (𝐹𝑥) ∈ (𝐹𝐴)))
21 tz9.12lem.1 . . . . . . . . . . 11 𝐴 ∈ V
2221, 1tz9.12lem2 8598 . . . . . . . . . 10 suc (𝐹𝐴) ∈ On
2321, 1tz9.12lem1 8597 . . . . . . . . . . . 12 (𝐹𝐴) ⊆ On
24 onsucuni 6978 . . . . . . . . . . . 12 ((𝐹𝐴) ⊆ On → (𝐹𝐴) ⊆ suc (𝐹𝐴))
2523, 24ax-mp 5 . . . . . . . . . . 11 (𝐹𝐴) ⊆ suc (𝐹𝐴)
2625sseli 3580 . . . . . . . . . 10 ((𝐹𝑥) ∈ (𝐹𝐴) → (𝐹𝑥) ∈ suc (𝐹𝐴))
27 r1ord2 8591 . . . . . . . . . 10 (suc (𝐹𝐴) ∈ On → ((𝐹𝑥) ∈ suc (𝐹𝐴) → (𝑅1‘(𝐹𝑥)) ⊆ (𝑅1‘suc (𝐹𝐴))))
2822, 26, 27mpsyl 68 . . . . . . . . 9 ((𝐹𝑥) ∈ (𝐹𝐴) → (𝑅1‘(𝐹𝑥)) ⊆ (𝑅1‘suc (𝐹𝐴)))
2920, 28syl6 35 . . . . . . . 8 ((𝑦 ∈ On ∧ 𝑥 ∈ (𝑅1𝑦)) → (𝑥𝐴 → (𝑅1‘(𝐹𝑥)) ⊆ (𝑅1‘suc (𝐹𝐴))))
3029imp 445 . . . . . . 7 (((𝑦 ∈ On ∧ 𝑥 ∈ (𝑅1𝑦)) ∧ 𝑥𝐴) → (𝑅1‘(𝐹𝑥)) ⊆ (𝑅1‘suc (𝐹𝐴)))
3113, 1fvmptg 6239 . . . . . . . . . . . 12 ((𝑥 ∈ V ∧ {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1𝑣)} ∈ V) → (𝐹𝑥) = {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1𝑣)})
3210, 31mpan 705 . . . . . . . . . . 11 ( {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1𝑣)} ∈ V → (𝐹𝑥) = {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1𝑣)})
338, 32sylbi 207 . . . . . . . . . 10 ({𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1𝑣)} ≠ ∅ → (𝐹𝑥) = {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1𝑣)})
34 ssrab2 3668 . . . . . . . . . . 11 {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1𝑣)} ⊆ On
35 onint 6945 . . . . . . . . . . 11 (({𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1𝑣)} ⊆ On ∧ {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1𝑣)} ≠ ∅) → {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1𝑣)} ∈ {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1𝑣)})
3634, 35mpan 705 . . . . . . . . . 10 ({𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1𝑣)} ≠ ∅ → {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1𝑣)} ∈ {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1𝑣)})
3733, 36eqeltrd 2698 . . . . . . . . 9 ({𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1𝑣)} ≠ ∅ → (𝐹𝑥) ∈ {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1𝑣)})
38 fveq2 6150 . . . . . . . . . . . 12 (𝑦 = (𝐹𝑥) → (𝑅1𝑦) = (𝑅1‘(𝐹𝑥)))
3938eleq2d 2684 . . . . . . . . . . 11 (𝑦 = (𝐹𝑥) → (𝑥 ∈ (𝑅1𝑦) ↔ 𝑥 ∈ (𝑅1‘(𝐹𝑥))))
404cbvrabv 3185 . . . . . . . . . . 11 {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1𝑣)} = {𝑦 ∈ On ∣ 𝑥 ∈ (𝑅1𝑦)}
4139, 40elrab2 3349 . . . . . . . . . 10 ((𝐹𝑥) ∈ {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1𝑣)} ↔ ((𝐹𝑥) ∈ On ∧ 𝑥 ∈ (𝑅1‘(𝐹𝑥))))
4241simprbi 480 . . . . . . . . 9 ((𝐹𝑥) ∈ {𝑣 ∈ On ∣ 𝑥 ∈ (𝑅1𝑣)} → 𝑥 ∈ (𝑅1‘(𝐹𝑥)))
437, 37, 423syl 18 . . . . . . . 8 ((𝑦 ∈ On ∧ 𝑥 ∈ (𝑅1𝑦)) → 𝑥 ∈ (𝑅1‘(𝐹𝑥)))
4443adantr 481 . . . . . . 7 (((𝑦 ∈ On ∧ 𝑥 ∈ (𝑅1𝑦)) ∧ 𝑥𝐴) → 𝑥 ∈ (𝑅1‘(𝐹𝑥)))
4530, 44sseldd 3585 . . . . . 6 (((𝑦 ∈ On ∧ 𝑥 ∈ (𝑅1𝑦)) ∧ 𝑥𝐴) → 𝑥 ∈ (𝑅1‘suc (𝐹𝐴)))
4645exp31 629 . . . . 5 (𝑦 ∈ On → (𝑥 ∈ (𝑅1𝑦) → (𝑥𝐴𝑥 ∈ (𝑅1‘suc (𝐹𝐴)))))
4746com3r 87 . . . 4 (𝑥𝐴 → (𝑦 ∈ On → (𝑥 ∈ (𝑅1𝑦) → 𝑥 ∈ (𝑅1‘suc (𝐹𝐴)))))
4847rexlimdv 3023 . . 3 (𝑥𝐴 → (∃𝑦 ∈ On 𝑥 ∈ (𝑅1𝑦) → 𝑥 ∈ (𝑅1‘suc (𝐹𝐴))))
4948ralimia 2945 . 2 (∀𝑥𝐴𝑦 ∈ On 𝑥 ∈ (𝑅1𝑦) → ∀𝑥𝐴 𝑥 ∈ (𝑅1‘suc (𝐹𝐴)))
50 r1suc 8580 . . . . 5 (suc (𝐹𝐴) ∈ On → (𝑅1‘suc suc (𝐹𝐴)) = 𝒫 (𝑅1‘suc (𝐹𝐴)))
5122, 50ax-mp 5 . . . 4 (𝑅1‘suc suc (𝐹𝐴)) = 𝒫 (𝑅1‘suc (𝐹𝐴))
5251eleq2i 2690 . . 3 (𝐴 ∈ (𝑅1‘suc suc (𝐹𝐴)) ↔ 𝐴 ∈ 𝒫 (𝑅1‘suc (𝐹𝐴)))
5321elpw 4138 . . 3 (𝐴 ∈ 𝒫 (𝑅1‘suc (𝐹𝐴)) ↔ 𝐴 ⊆ (𝑅1‘suc (𝐹𝐴)))
54 dfss3 3574 . . 3 (𝐴 ⊆ (𝑅1‘suc (𝐹𝐴)) ↔ ∀𝑥𝐴 𝑥 ∈ (𝑅1‘suc (𝐹𝐴)))
5552, 53, 543bitri 286 . 2 (𝐴 ∈ (𝑅1‘suc suc (𝐹𝐴)) ↔ ∀𝑥𝐴 𝑥 ∈ (𝑅1‘suc (𝐹𝐴)))
5649, 55sylibr 224 1 (∀𝑥𝐴𝑦 ∈ On 𝑥 ∈ (𝑅1𝑦) → 𝐴 ∈ (𝑅1‘suc suc (𝐹𝐴)))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 384   = wceq 1480  wcel 1987  wne 2790  wral 2907  wrex 2908  {crab 2911  Vcvv 3186  wss 3556  c0 3893  𝒫 cpw 4132   cuni 4404   cint 4442  cmpt 4675  dom cdm 5076  cima 5079  Oncon0 5684  suc csuc 5686  Fun wfun 5843  cfv 5849  𝑅1cr1 8572
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1719  ax-4 1734  ax-5 1836  ax-6 1885  ax-7 1932  ax-8 1989  ax-9 1996  ax-10 2016  ax-11 2031  ax-12 2044  ax-13 2245  ax-ext 2601  ax-rep 4733  ax-sep 4743  ax-nul 4751  ax-pow 4805  ax-pr 4869  ax-un 6905
This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3or 1037  df-3an 1038  df-tru 1483  df-ex 1702  df-nf 1707  df-sb 1878  df-eu 2473  df-mo 2474  df-clab 2608  df-cleq 2614  df-clel 2617  df-nfc 2750  df-ne 2791  df-ral 2912  df-rex 2913  df-reu 2914  df-rab 2916  df-v 3188  df-sbc 3419  df-csb 3516  df-dif 3559  df-un 3561  df-in 3563  df-ss 3570  df-pss 3572  df-nul 3894  df-if 4061  df-pw 4134  df-sn 4151  df-pr 4153  df-tp 4155  df-op 4157  df-uni 4405  df-int 4443  df-iun 4489  df-br 4616  df-opab 4676  df-mpt 4677  df-tr 4715  df-eprel 4987  df-id 4991  df-po 4997  df-so 4998  df-fr 5035  df-we 5037  df-xp 5082  df-rel 5083  df-cnv 5084  df-co 5085  df-dm 5086  df-rn 5087  df-res 5088  df-ima 5089  df-pred 5641  df-ord 5687  df-on 5688  df-lim 5689  df-suc 5690  df-iota 5812  df-fun 5851  df-fn 5852  df-f 5853  df-f1 5854  df-fo 5855  df-f1o 5856  df-fv 5857  df-om 7016  df-wrecs 7355  df-recs 7416  df-rdg 7454  df-r1 8574
This theorem is referenced by:  tz9.12  8600
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