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Theorem tfr1onlemubacc 6209
 Description: Lemma for tfr1on 6213. The union of 𝐵 satisfies the recursion rule. (Contributed by Jim Kingdon, 15-Mar-2022.)
Hypotheses
Ref Expression
tfr1on.f 𝐹 = recs(𝐺)
tfr1on.g (𝜑 → Fun 𝐺)
tfr1on.x (𝜑 → Ord 𝑋)
tfr1on.ex ((𝜑𝑥𝑋𝑓 Fn 𝑥) → (𝐺𝑓) ∈ V)
tfr1onlemsucfn.1 𝐴 = {𝑓 ∣ ∃𝑥𝑋 (𝑓 Fn 𝑥 ∧ ∀𝑦𝑥 (𝑓𝑦) = (𝐺‘(𝑓𝑦)))}
tfr1onlembacc.3 𝐵 = { ∣ ∃𝑧𝐷𝑔(𝑔 Fn 𝑧𝑔𝐴 = (𝑔 ∪ {⟨𝑧, (𝐺𝑔)⟩}))}
tfr1onlembacc.u ((𝜑𝑥 𝑋) → suc 𝑥𝑋)
tfr1onlembacc.4 (𝜑𝐷𝑋)
tfr1onlembacc.5 (𝜑 → ∀𝑧𝐷𝑔(𝑔 Fn 𝑧 ∧ ∀𝑤𝑧 (𝑔𝑤) = (𝐺‘(𝑔𝑤))))
Assertion
Ref Expression
tfr1onlemubacc (𝜑 → ∀𝑢𝐷 ( 𝐵𝑢) = (𝐺‘( 𝐵𝑢)))
Distinct variable groups:   𝐴,𝑓,𝑔,,𝑥,𝑧   𝐷,𝑓,𝑔,𝑥   𝑓,𝐺,𝑥,𝑦   𝑓,𝑋,𝑥   𝜑,𝑓,𝑔,,𝑥,𝑧   𝑦,𝑔,𝑧   𝐵,𝑔,,𝑤,𝑧   𝑢,𝐵,𝑤   𝐷,,𝑤,𝑧,𝑓,𝑥   𝑢,𝐷   ,𝐺,𝑧,𝑦   𝑢,𝐺,𝑤   𝑔,𝑋,𝑧   𝜑,𝑤   𝑦,𝑤
Allowed substitution hints:   𝜑(𝑦,𝑢)   𝐴(𝑦,𝑤,𝑢)   𝐵(𝑥,𝑦,𝑓)   𝐷(𝑦)   𝐹(𝑥,𝑦,𝑧,𝑤,𝑢,𝑓,𝑔,)   𝐺(𝑔)   𝑋(𝑦,𝑤,𝑢,)

Proof of Theorem tfr1onlemubacc
StepHypRef Expression
1 tfr1on.f . . . . . . . . 9 𝐹 = recs(𝐺)
2 tfr1on.g . . . . . . . . 9 (𝜑 → Fun 𝐺)
3 tfr1on.x . . . . . . . . 9 (𝜑 → Ord 𝑋)
4 tfr1on.ex . . . . . . . . 9 ((𝜑𝑥𝑋𝑓 Fn 𝑥) → (𝐺𝑓) ∈ V)
5 tfr1onlemsucfn.1 . . . . . . . . 9 𝐴 = {𝑓 ∣ ∃𝑥𝑋 (𝑓 Fn 𝑥 ∧ ∀𝑦𝑥 (𝑓𝑦) = (𝐺‘(𝑓𝑦)))}
6 tfr1onlembacc.3 . . . . . . . . 9 𝐵 = { ∣ ∃𝑧𝐷𝑔(𝑔 Fn 𝑧𝑔𝐴 = (𝑔 ∪ {⟨𝑧, (𝐺𝑔)⟩}))}
7 tfr1onlembacc.u . . . . . . . . 9 ((𝜑𝑥 𝑋) → suc 𝑥𝑋)
8 tfr1onlembacc.4 . . . . . . . . 9 (𝜑𝐷𝑋)
9 tfr1onlembacc.5 . . . . . . . . 9 (𝜑 → ∀𝑧𝐷𝑔(𝑔 Fn 𝑧 ∧ ∀𝑤𝑧 (𝑔𝑤) = (𝐺‘(𝑔𝑤))))
101, 2, 3, 4, 5, 6, 7, 8, 9tfr1onlembfn 6207 . . . . . . . 8 (𝜑 𝐵 Fn 𝐷)
11 fndm 5190 . . . . . . . 8 ( 𝐵 Fn 𝐷 → dom 𝐵 = 𝐷)
1210, 11syl 14 . . . . . . 7 (𝜑 → dom 𝐵 = 𝐷)
131, 2, 3, 4, 5, 6, 7, 8, 9tfr1onlembacc 6205 . . . . . . . . . 10 (𝜑𝐵𝐴)
1413unissd 3728 . . . . . . . . 9 (𝜑 𝐵 𝐴)
155, 3tfr1onlemssrecs 6202 . . . . . . . . 9 (𝜑 𝐴 ⊆ recs(𝐺))
1614, 15sstrd 3075 . . . . . . . 8 (𝜑 𝐵 ⊆ recs(𝐺))
17 dmss 4706 . . . . . . . 8 ( 𝐵 ⊆ recs(𝐺) → dom 𝐵 ⊆ dom recs(𝐺))
1816, 17syl 14 . . . . . . 7 (𝜑 → dom 𝐵 ⊆ dom recs(𝐺))
1912, 18eqsstrrd 3102 . . . . . 6 (𝜑𝐷 ⊆ dom recs(𝐺))
2019sselda 3065 . . . . 5 ((𝜑𝑤𝐷) → 𝑤 ∈ dom recs(𝐺))
21 eqid 2115 . . . . . 6 {𝑓 ∣ ∃𝑥 ∈ On (𝑓 Fn 𝑥 ∧ ∀𝑦𝑥 (𝑓𝑦) = (𝐺‘(𝑓𝑦)))} = {𝑓 ∣ ∃𝑥 ∈ On (𝑓 Fn 𝑥 ∧ ∀𝑦𝑥 (𝑓𝑦) = (𝐺‘(𝑓𝑦)))}
2221tfrlem9 6182 . . . . 5 (𝑤 ∈ dom recs(𝐺) → (recs(𝐺)‘𝑤) = (𝐺‘(recs(𝐺) ↾ 𝑤)))
2320, 22syl 14 . . . 4 ((𝜑𝑤𝐷) → (recs(𝐺)‘𝑤) = (𝐺‘(recs(𝐺) ↾ 𝑤)))
24 tfrfun 6183 . . . . 5 Fun recs(𝐺)
2512eleq2d 2185 . . . . . 6 (𝜑 → (𝑤 ∈ dom 𝐵𝑤𝐷))
2625biimpar 293 . . . . 5 ((𝜑𝑤𝐷) → 𝑤 ∈ dom 𝐵)
27 funssfv 5413 . . . . 5 ((Fun recs(𝐺) ∧ 𝐵 ⊆ recs(𝐺) ∧ 𝑤 ∈ dom 𝐵) → (recs(𝐺)‘𝑤) = ( 𝐵𝑤))
2824, 16, 26, 27mp3an2ani 1305 . . . 4 ((𝜑𝑤𝐷) → (recs(𝐺)‘𝑤) = ( 𝐵𝑤))
29 ordelon 4273 . . . . . . . . . 10 ((Ord 𝑋𝐷𝑋) → 𝐷 ∈ On)
303, 8, 29syl2anc 406 . . . . . . . . 9 (𝜑𝐷 ∈ On)
31 eloni 4265 . . . . . . . . 9 (𝐷 ∈ On → Ord 𝐷)
3230, 31syl 14 . . . . . . . 8 (𝜑 → Ord 𝐷)
33 ordelss 4269 . . . . . . . 8 ((Ord 𝐷𝑤𝐷) → 𝑤𝐷)
3432, 33sylan 279 . . . . . . 7 ((𝜑𝑤𝐷) → 𝑤𝐷)
3512adantr 272 . . . . . . 7 ((𝜑𝑤𝐷) → dom 𝐵 = 𝐷)
3634, 35sseqtrrd 3104 . . . . . 6 ((𝜑𝑤𝐷) → 𝑤 ⊆ dom 𝐵)
37 fun2ssres 5134 . . . . . 6 ((Fun recs(𝐺) ∧ 𝐵 ⊆ recs(𝐺) ∧ 𝑤 ⊆ dom 𝐵) → (recs(𝐺) ↾ 𝑤) = ( 𝐵𝑤))
3824, 16, 36, 37mp3an2ani 1305 . . . . 5 ((𝜑𝑤𝐷) → (recs(𝐺) ↾ 𝑤) = ( 𝐵𝑤))
3938fveq2d 5391 . . . 4 ((𝜑𝑤𝐷) → (𝐺‘(recs(𝐺) ↾ 𝑤)) = (𝐺‘( 𝐵𝑤)))
4023, 28, 393eqtr3d 2156 . . 3 ((𝜑𝑤𝐷) → ( 𝐵𝑤) = (𝐺‘( 𝐵𝑤)))
4140ralrimiva 2480 . 2 (𝜑 → ∀𝑤𝐷 ( 𝐵𝑤) = (𝐺‘( 𝐵𝑤)))
42 fveq2 5387 . . . 4 (𝑢 = 𝑤 → ( 𝐵𝑢) = ( 𝐵𝑤))
43 reseq2 4782 . . . . 5 (𝑢 = 𝑤 → ( 𝐵𝑢) = ( 𝐵𝑤))
4443fveq2d 5391 . . . 4 (𝑢 = 𝑤 → (𝐺‘( 𝐵𝑢)) = (𝐺‘( 𝐵𝑤)))
4542, 44eqeq12d 2130 . . 3 (𝑢 = 𝑤 → (( 𝐵𝑢) = (𝐺‘( 𝐵𝑢)) ↔ ( 𝐵𝑤) = (𝐺‘( 𝐵𝑤))))
4645cbvralv 2629 . 2 (∀𝑢𝐷 ( 𝐵𝑢) = (𝐺‘( 𝐵𝑢)) ↔ ∀𝑤𝐷 ( 𝐵𝑤) = (𝐺‘( 𝐵𝑤)))
4741, 46sylibr 133 1 (𝜑 → ∀𝑢𝐷 ( 𝐵𝑢) = (𝐺‘( 𝐵𝑢)))
 Colors of variables: wff set class Syntax hints:   → wi 4   ∧ wa 103   ∧ w3a 945   = wceq 1314  ∃wex 1451   ∈ wcel 1463  {cab 2101  ∀wral 2391  ∃wrex 2392  Vcvv 2658   ∪ cun 3037   ⊆ wss 3039  {csn 3495  ⟨cop 3498  ∪ cuni 3704  Ord word 4252  Oncon0 4253  suc csuc 4255  dom cdm 4507   ↾ cres 4509  Fun wfun 5085   Fn wfn 5086  ‘cfv 5091  recscrecs 6167 This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-in1 586  ax-in2 587  ax-io 681  ax-5 1406  ax-7 1407  ax-gen 1408  ax-ie1 1452  ax-ie2 1453  ax-8 1465  ax-10 1466  ax-11 1467  ax-i12 1468  ax-bndl 1469  ax-4 1470  ax-13 1474  ax-14 1475  ax-17 1489  ax-i9 1493  ax-ial 1497  ax-i5r 1498  ax-ext 2097  ax-sep 4014  ax-pow 4066  ax-pr 4099  ax-un 4323  ax-setind 4420 This theorem depends on definitions:  df-bi 116  df-3an 947  df-tru 1317  df-fal 1320  df-nf 1420  df-sb 1719  df-eu 1978  df-mo 1979  df-clab 2102  df-cleq 2108  df-clel 2111  df-nfc 2245  df-ne 2284  df-ral 2396  df-rex 2397  df-rab 2400  df-v 2660  df-sbc 2881  df-csb 2974  df-dif 3041  df-un 3043  df-in 3045  df-ss 3052  df-nul 3332  df-pw 3480  df-sn 3501  df-pr 3502  df-op 3504  df-uni 3705  df-iun 3783  df-br 3898  df-opab 3958  df-mpt 3959  df-tr 3995  df-id 4183  df-iord 4256  df-on 4258  df-suc 4261  df-xp 4513  df-rel 4514  df-cnv 4515  df-co 4516  df-dm 4517  df-rn 4518  df-res 4519  df-iota 5056  df-fun 5093  df-fn 5094  df-f 5095  df-fv 5099  df-recs 6168 This theorem is referenced by:  tfr1onlemex  6210
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