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Theorem zorn2lem1 9518
Description: Lemma for zorn2 9528. (Contributed by NM, 3-Apr-1997.) (Revised by Mario Carneiro, 9-May-2015.)
Hypotheses
Ref Expression
zorn2lem.3 𝐹 = recs((𝑓 ∈ V ↦ (𝑣𝐶𝑢𝐶 ¬ 𝑢𝑤𝑣)))
zorn2lem.4 𝐶 = {𝑧𝐴 ∣ ∀𝑔 ∈ ran 𝑓 𝑔𝑅𝑧}
zorn2lem.5 𝐷 = {𝑧𝐴 ∣ ∀𝑔 ∈ (𝐹𝑥)𝑔𝑅𝑧}
Assertion
Ref Expression
zorn2lem1 ((𝑥 ∈ On ∧ (𝑤 We 𝐴𝐷 ≠ ∅)) → (𝐹𝑥) ∈ 𝐷)
Distinct variable groups:   𝑓,𝑔,𝑢,𝑣,𝑤,𝑥,𝑧,𝐴   𝐷,𝑓,𝑢,𝑣   𝑓,𝐹,𝑔,𝑢,𝑣,𝑥,𝑧   𝑅,𝑓,𝑔,𝑢,𝑣,𝑤,𝑥,𝑧   𝑣,𝐶
Allowed substitution hints:   𝐶(𝑥,𝑧,𝑤,𝑢,𝑓,𝑔)   𝐷(𝑥,𝑧,𝑤,𝑔)   𝐹(𝑤)

Proof of Theorem zorn2lem1
StepHypRef Expression
1 zorn2lem.3 . . . . 5 𝐹 = recs((𝑓 ∈ V ↦ (𝑣𝐶𝑢𝐶 ¬ 𝑢𝑤𝑣)))
21tfr2 7645 . . . 4 (𝑥 ∈ On → (𝐹𝑥) = ((𝑓 ∈ V ↦ (𝑣𝐶𝑢𝐶 ¬ 𝑢𝑤𝑣))‘(𝐹𝑥)))
32adantr 466 . . 3 ((𝑥 ∈ On ∧ (𝑤 We 𝐴𝐷 ≠ ∅)) → (𝐹𝑥) = ((𝑓 ∈ V ↦ (𝑣𝐶𝑢𝐶 ¬ 𝑢𝑤𝑣))‘(𝐹𝑥)))
41tfr1 7644 . . . . . 6 𝐹 Fn On
5 fnfun 6126 . . . . . 6 (𝐹 Fn On → Fun 𝐹)
64, 5ax-mp 5 . . . . 5 Fun 𝐹
7 vex 3354 . . . . 5 𝑥 ∈ V
8 resfunexg 6621 . . . . 5 ((Fun 𝐹𝑥 ∈ V) → (𝐹𝑥) ∈ V)
96, 7, 8mp2an 672 . . . 4 (𝐹𝑥) ∈ V
10 rneq 5487 . . . . . . . . . . . 12 (𝑓 = (𝐹𝑥) → ran 𝑓 = ran (𝐹𝑥))
11 df-ima 5262 . . . . . . . . . . . 12 (𝐹𝑥) = ran (𝐹𝑥)
1210, 11syl6eqr 2823 . . . . . . . . . . 11 (𝑓 = (𝐹𝑥) → ran 𝑓 = (𝐹𝑥))
1312eleq2d 2836 . . . . . . . . . 10 (𝑓 = (𝐹𝑥) → (𝑔 ∈ ran 𝑓𝑔 ∈ (𝐹𝑥)))
1413imbi1d 330 . . . . . . . . 9 (𝑓 = (𝐹𝑥) → ((𝑔 ∈ ran 𝑓𝑔𝑅𝑧) ↔ (𝑔 ∈ (𝐹𝑥) → 𝑔𝑅𝑧)))
1514ralbidv2 3133 . . . . . . . 8 (𝑓 = (𝐹𝑥) → (∀𝑔 ∈ ran 𝑓 𝑔𝑅𝑧 ↔ ∀𝑔 ∈ (𝐹𝑥)𝑔𝑅𝑧))
1615rabbidv 3339 . . . . . . 7 (𝑓 = (𝐹𝑥) → {𝑧𝐴 ∣ ∀𝑔 ∈ ran 𝑓 𝑔𝑅𝑧} = {𝑧𝐴 ∣ ∀𝑔 ∈ (𝐹𝑥)𝑔𝑅𝑧})
17 zorn2lem.4 . . . . . . 7 𝐶 = {𝑧𝐴 ∣ ∀𝑔 ∈ ran 𝑓 𝑔𝑅𝑧}
18 zorn2lem.5 . . . . . . 7 𝐷 = {𝑧𝐴 ∣ ∀𝑔 ∈ (𝐹𝑥)𝑔𝑅𝑧}
1916, 17, 183eqtr4g 2830 . . . . . 6 (𝑓 = (𝐹𝑥) → 𝐶 = 𝐷)
2019eleq2d 2836 . . . . . . . 8 (𝑓 = (𝐹𝑥) → (𝑢𝐶𝑢𝐷))
2120imbi1d 330 . . . . . . 7 (𝑓 = (𝐹𝑥) → ((𝑢𝐶 → ¬ 𝑢𝑤𝑣) ↔ (𝑢𝐷 → ¬ 𝑢𝑤𝑣)))
2221ralbidv2 3133 . . . . . 6 (𝑓 = (𝐹𝑥) → (∀𝑢𝐶 ¬ 𝑢𝑤𝑣 ↔ ∀𝑢𝐷 ¬ 𝑢𝑤𝑣))
2319, 22riotaeqbidv 6755 . . . . 5 (𝑓 = (𝐹𝑥) → (𝑣𝐶𝑢𝐶 ¬ 𝑢𝑤𝑣) = (𝑣𝐷𝑢𝐷 ¬ 𝑢𝑤𝑣))
24 eqid 2771 . . . . 5 (𝑓 ∈ V ↦ (𝑣𝐶𝑢𝐶 ¬ 𝑢𝑤𝑣)) = (𝑓 ∈ V ↦ (𝑣𝐶𝑢𝐶 ¬ 𝑢𝑤𝑣))
25 riotaex 6756 . . . . 5 (𝑣𝐷𝑢𝐷 ¬ 𝑢𝑤𝑣) ∈ V
2623, 24, 25fvmpt 6422 . . . 4 ((𝐹𝑥) ∈ V → ((𝑓 ∈ V ↦ (𝑣𝐶𝑢𝐶 ¬ 𝑢𝑤𝑣))‘(𝐹𝑥)) = (𝑣𝐷𝑢𝐷 ¬ 𝑢𝑤𝑣))
279, 26ax-mp 5 . . 3 ((𝑓 ∈ V ↦ (𝑣𝐶𝑢𝐶 ¬ 𝑢𝑤𝑣))‘(𝐹𝑥)) = (𝑣𝐷𝑢𝐷 ¬ 𝑢𝑤𝑣)
283, 27syl6eq 2821 . 2 ((𝑥 ∈ On ∧ (𝑤 We 𝐴𝐷 ≠ ∅)) → (𝐹𝑥) = (𝑣𝐷𝑢𝐷 ¬ 𝑢𝑤𝑣))
29 simprl 754 . . . 4 ((𝑥 ∈ On ∧ (𝑤 We 𝐴𝐷 ≠ ∅)) → 𝑤 We 𝐴)
30 weso 5240 . . . . . . 7 (𝑤 We 𝐴𝑤 Or 𝐴)
3130ad2antrl 707 . . . . . 6 ((𝑥 ∈ On ∧ (𝑤 We 𝐴𝐷 ≠ ∅)) → 𝑤 Or 𝐴)
32 vex 3354 . . . . . 6 𝑤 ∈ V
33 soex 7254 . . . . . 6 ((𝑤 Or 𝐴𝑤 ∈ V) → 𝐴 ∈ V)
3431, 32, 33sylancl 574 . . . . 5 ((𝑥 ∈ On ∧ (𝑤 We 𝐴𝐷 ≠ ∅)) → 𝐴 ∈ V)
3518, 34rabexd 4947 . . . 4 ((𝑥 ∈ On ∧ (𝑤 We 𝐴𝐷 ≠ ∅)) → 𝐷 ∈ V)
36 ssrab2 3836 . . . . . 6 {𝑧𝐴 ∣ ∀𝑔 ∈ (𝐹𝑥)𝑔𝑅𝑧} ⊆ 𝐴
3718, 36eqsstri 3784 . . . . 5 𝐷𝐴
3837a1i 11 . . . 4 ((𝑥 ∈ On ∧ (𝑤 We 𝐴𝐷 ≠ ∅)) → 𝐷𝐴)
39 simprr 756 . . . 4 ((𝑥 ∈ On ∧ (𝑤 We 𝐴𝐷 ≠ ∅)) → 𝐷 ≠ ∅)
40 wereu 5245 . . . 4 ((𝑤 We 𝐴 ∧ (𝐷 ∈ V ∧ 𝐷𝐴𝐷 ≠ ∅)) → ∃!𝑣𝐷𝑢𝐷 ¬ 𝑢𝑤𝑣)
4129, 35, 38, 39, 40syl13anc 1478 . . 3 ((𝑥 ∈ On ∧ (𝑤 We 𝐴𝐷 ≠ ∅)) → ∃!𝑣𝐷𝑢𝐷 ¬ 𝑢𝑤𝑣)
42 riotacl 6766 . . 3 (∃!𝑣𝐷𝑢𝐷 ¬ 𝑢𝑤𝑣 → (𝑣𝐷𝑢𝐷 ¬ 𝑢𝑤𝑣) ∈ 𝐷)
4341, 42syl 17 . 2 ((𝑥 ∈ On ∧ (𝑤 We 𝐴𝐷 ≠ ∅)) → (𝑣𝐷𝑢𝐷 ¬ 𝑢𝑤𝑣) ∈ 𝐷)
4428, 43eqeltrd 2850 1 ((𝑥 ∈ On ∧ (𝑤 We 𝐴𝐷 ≠ ∅)) → (𝐹𝑥) ∈ 𝐷)
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wi 4  wa 382   = wceq 1631  wcel 2145  wne 2943  wral 3061  ∃!wreu 3063  {crab 3065  Vcvv 3351  wss 3723  c0 4063   class class class wbr 4786  cmpt 4863   Or wor 5169   We wwe 5207  ran crn 5250  cres 5251  cima 5252  Oncon0 5864  Fun wfun 6023   Fn wfn 6024  cfv 6029  crio 6751  recscrecs 7618
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1870  ax-4 1885  ax-5 1991  ax-6 2057  ax-7 2093  ax-8 2147  ax-9 2154  ax-10 2174  ax-11 2190  ax-12 2203  ax-13 2408  ax-ext 2751  ax-rep 4904  ax-sep 4915  ax-nul 4923  ax-pow 4974  ax-pr 5034  ax-un 7094
This theorem depends on definitions:  df-bi 197  df-an 383  df-or 837  df-3or 1072  df-3an 1073  df-tru 1634  df-ex 1853  df-nf 1858  df-sb 2050  df-eu 2622  df-mo 2623  df-clab 2758  df-cleq 2764  df-clel 2767  df-nfc 2902  df-ne 2944  df-ral 3066  df-rex 3067  df-reu 3068  df-rmo 3069  df-rab 3070  df-v 3353  df-sbc 3588  df-csb 3683  df-dif 3726  df-un 3728  df-in 3730  df-ss 3737  df-pss 3739  df-nul 4064  df-if 4226  df-sn 4317  df-pr 4319  df-tp 4321  df-op 4323  df-uni 4575  df-iun 4656  df-br 4787  df-opab 4847  df-mpt 4864  df-tr 4887  df-id 5157  df-eprel 5162  df-po 5170  df-so 5171  df-fr 5208  df-we 5210  df-xp 5255  df-rel 5256  df-cnv 5257  df-co 5258  df-dm 5259  df-rn 5260  df-res 5261  df-ima 5262  df-pred 5821  df-ord 5867  df-on 5868  df-suc 5870  df-iota 5992  df-fun 6031  df-fn 6032  df-f 6033  df-f1 6034  df-fo 6035  df-f1o 6036  df-fv 6037  df-riota 6752  df-wrecs 7557  df-recs 7619
This theorem is referenced by:  zorn2lem2  9519  zorn2lem3  9520  zorn2lem4  9521  zorn2lem5  9522
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