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Theorem ctiunctlemf 12393
Description: Lemma for ctiunct 12395. (Contributed by Jim Kingdon, 28-Oct-2023.)
Hypotheses
Ref Expression
ctiunct.som (𝜑𝑆 ⊆ ω)
ctiunct.sdc (𝜑 → ∀𝑛 ∈ ω DECID 𝑛𝑆)
ctiunct.f (𝜑𝐹:𝑆onto𝐴)
ctiunct.tom ((𝜑𝑥𝐴) → 𝑇 ⊆ ω)
ctiunct.tdc ((𝜑𝑥𝐴) → ∀𝑛 ∈ ω DECID 𝑛𝑇)
ctiunct.g ((𝜑𝑥𝐴) → 𝐺:𝑇onto𝐵)
ctiunct.j (𝜑𝐽:ω–1-1-onto→(ω × ω))
ctiunct.u 𝑈 = {𝑧 ∈ ω ∣ ((1st ‘(𝐽𝑧)) ∈ 𝑆 ∧ (2nd ‘(𝐽𝑧)) ∈ (𝐹‘(1st ‘(𝐽𝑧))) / 𝑥𝑇)}
ctiunct.h 𝐻 = (𝑛𝑈 ↦ ((𝐹‘(1st ‘(𝐽𝑛))) / 𝑥𝐺‘(2nd ‘(𝐽𝑛))))
Assertion
Ref Expression
ctiunctlemf (𝜑𝐻:𝑈 𝑥𝐴 𝐵)
Distinct variable groups:   𝐴,𝑛,𝑥   𝐵,𝑛   𝑥,𝐹,𝑧   𝑥,𝐽,𝑧   𝑧,𝑆   𝑧,𝑇   𝑈,𝑛   𝜑,𝑛,𝑥   𝑥,𝑧,𝑛
Allowed substitution hints:   𝜑(𝑧)   𝐴(𝑧)   𝐵(𝑥,𝑧)   𝑆(𝑥,𝑛)   𝑇(𝑥,𝑛)   𝑈(𝑥,𝑧)   𝐹(𝑛)   𝐺(𝑥,𝑧,𝑛)   𝐻(𝑥,𝑧,𝑛)   𝐽(𝑛)

Proof of Theorem ctiunctlemf
Dummy variable 𝑦 is distinct from all other variables.
StepHypRef Expression
1 ctiunct.f . . . . . . . 8 (𝜑𝐹:𝑆onto𝐴)
21adantr 274 . . . . . . 7 ((𝜑𝑛𝑈) → 𝐹:𝑆onto𝐴)
3 fof 5420 . . . . . . 7 (𝐹:𝑆onto𝐴𝐹:𝑆𝐴)
42, 3syl 14 . . . . . 6 ((𝜑𝑛𝑈) → 𝐹:𝑆𝐴)
5 ctiunct.som . . . . . . . 8 (𝜑𝑆 ⊆ ω)
65adantr 274 . . . . . . 7 ((𝜑𝑛𝑈) → 𝑆 ⊆ ω)
7 ctiunct.sdc . . . . . . . 8 (𝜑 → ∀𝑛 ∈ ω DECID 𝑛𝑆)
87adantr 274 . . . . . . 7 ((𝜑𝑛𝑈) → ∀𝑛 ∈ ω DECID 𝑛𝑆)
9 ctiunct.tom . . . . . . . 8 ((𝜑𝑥𝐴) → 𝑇 ⊆ ω)
109adantlr 474 . . . . . . 7 (((𝜑𝑛𝑈) ∧ 𝑥𝐴) → 𝑇 ⊆ ω)
11 ctiunct.tdc . . . . . . . 8 ((𝜑𝑥𝐴) → ∀𝑛 ∈ ω DECID 𝑛𝑇)
1211adantlr 474 . . . . . . 7 (((𝜑𝑛𝑈) ∧ 𝑥𝐴) → ∀𝑛 ∈ ω DECID 𝑛𝑇)
13 ctiunct.g . . . . . . . 8 ((𝜑𝑥𝐴) → 𝐺:𝑇onto𝐵)
1413adantlr 474 . . . . . . 7 (((𝜑𝑛𝑈) ∧ 𝑥𝐴) → 𝐺:𝑇onto𝐵)
15 ctiunct.j . . . . . . . 8 (𝜑𝐽:ω–1-1-onto→(ω × ω))
1615adantr 274 . . . . . . 7 ((𝜑𝑛𝑈) → 𝐽:ω–1-1-onto→(ω × ω))
17 ctiunct.u . . . . . . 7 𝑈 = {𝑧 ∈ ω ∣ ((1st ‘(𝐽𝑧)) ∈ 𝑆 ∧ (2nd ‘(𝐽𝑧)) ∈ (𝐹‘(1st ‘(𝐽𝑧))) / 𝑥𝑇)}
18 simpr 109 . . . . . . 7 ((𝜑𝑛𝑈) → 𝑛𝑈)
196, 8, 2, 10, 12, 14, 16, 17, 18ctiunctlemu1st 12389 . . . . . 6 ((𝜑𝑛𝑈) → (1st ‘(𝐽𝑛)) ∈ 𝑆)
204, 19ffvelrnd 5632 . . . . 5 ((𝜑𝑛𝑈) → (𝐹‘(1st ‘(𝐽𝑛))) ∈ 𝐴)
21 fof 5420 . . . . . . . . . . 11 (𝐺:𝑇onto𝐵𝐺:𝑇𝐵)
2213, 21syl 14 . . . . . . . . . 10 ((𝜑𝑥𝐴) → 𝐺:𝑇𝐵)
2322ralrimiva 2543 . . . . . . . . 9 (𝜑 → ∀𝑥𝐴 𝐺:𝑇𝐵)
2423adantr 274 . . . . . . . 8 ((𝜑𝑛𝑈) → ∀𝑥𝐴 𝐺:𝑇𝐵)
25 rspsbc 3037 . . . . . . . 8 ((𝐹‘(1st ‘(𝐽𝑛))) ∈ 𝐴 → (∀𝑥𝐴 𝐺:𝑇𝐵[(𝐹‘(1st ‘(𝐽𝑛))) / 𝑥]𝐺:𝑇𝐵))
2620, 24, 25sylc 62 . . . . . . 7 ((𝜑𝑛𝑈) → [(𝐹‘(1st ‘(𝐽𝑛))) / 𝑥]𝐺:𝑇𝐵)
27 sbcfg 5346 . . . . . . . 8 ((𝐹‘(1st ‘(𝐽𝑛))) ∈ 𝐴 → ([(𝐹‘(1st ‘(𝐽𝑛))) / 𝑥]𝐺:𝑇𝐵(𝐹‘(1st ‘(𝐽𝑛))) / 𝑥𝐺:(𝐹‘(1st ‘(𝐽𝑛))) / 𝑥𝑇(𝐹‘(1st ‘(𝐽𝑛))) / 𝑥𝐵))
2820, 27syl 14 . . . . . . 7 ((𝜑𝑛𝑈) → ([(𝐹‘(1st ‘(𝐽𝑛))) / 𝑥]𝐺:𝑇𝐵(𝐹‘(1st ‘(𝐽𝑛))) / 𝑥𝐺:(𝐹‘(1st ‘(𝐽𝑛))) / 𝑥𝑇(𝐹‘(1st ‘(𝐽𝑛))) / 𝑥𝐵))
2926, 28mpbid 146 . . . . . 6 ((𝜑𝑛𝑈) → (𝐹‘(1st ‘(𝐽𝑛))) / 𝑥𝐺:(𝐹‘(1st ‘(𝐽𝑛))) / 𝑥𝑇(𝐹‘(1st ‘(𝐽𝑛))) / 𝑥𝐵)
306, 8, 2, 10, 12, 14, 16, 17, 18ctiunctlemu2nd 12390 . . . . . 6 ((𝜑𝑛𝑈) → (2nd ‘(𝐽𝑛)) ∈ (𝐹‘(1st ‘(𝐽𝑛))) / 𝑥𝑇)
3129, 30ffvelrnd 5632 . . . . 5 ((𝜑𝑛𝑈) → ((𝐹‘(1st ‘(𝐽𝑛))) / 𝑥𝐺‘(2nd ‘(𝐽𝑛))) ∈ (𝐹‘(1st ‘(𝐽𝑛))) / 𝑥𝐵)
32 csbeq1 3052 . . . . . . 7 (𝑦 = (𝐹‘(1st ‘(𝐽𝑛))) → 𝑦 / 𝑥𝐵 = (𝐹‘(1st ‘(𝐽𝑛))) / 𝑥𝐵)
3332eleq2d 2240 . . . . . 6 (𝑦 = (𝐹‘(1st ‘(𝐽𝑛))) → (((𝐹‘(1st ‘(𝐽𝑛))) / 𝑥𝐺‘(2nd ‘(𝐽𝑛))) ∈ 𝑦 / 𝑥𝐵 ↔ ((𝐹‘(1st ‘(𝐽𝑛))) / 𝑥𝐺‘(2nd ‘(𝐽𝑛))) ∈ (𝐹‘(1st ‘(𝐽𝑛))) / 𝑥𝐵))
3433rspcev 2834 . . . . 5 (((𝐹‘(1st ‘(𝐽𝑛))) ∈ 𝐴 ∧ ((𝐹‘(1st ‘(𝐽𝑛))) / 𝑥𝐺‘(2nd ‘(𝐽𝑛))) ∈ (𝐹‘(1st ‘(𝐽𝑛))) / 𝑥𝐵) → ∃𝑦𝐴 ((𝐹‘(1st ‘(𝐽𝑛))) / 𝑥𝐺‘(2nd ‘(𝐽𝑛))) ∈ 𝑦 / 𝑥𝐵)
3520, 31, 34syl2anc 409 . . . 4 ((𝜑𝑛𝑈) → ∃𝑦𝐴 ((𝐹‘(1st ‘(𝐽𝑛))) / 𝑥𝐺‘(2nd ‘(𝐽𝑛))) ∈ 𝑦 / 𝑥𝐵)
36 eliun 3877 . . . 4 (((𝐹‘(1st ‘(𝐽𝑛))) / 𝑥𝐺‘(2nd ‘(𝐽𝑛))) ∈ 𝑦𝐴 𝑦 / 𝑥𝐵 ↔ ∃𝑦𝐴 ((𝐹‘(1st ‘(𝐽𝑛))) / 𝑥𝐺‘(2nd ‘(𝐽𝑛))) ∈ 𝑦 / 𝑥𝐵)
3735, 36sylibr 133 . . 3 ((𝜑𝑛𝑈) → ((𝐹‘(1st ‘(𝐽𝑛))) / 𝑥𝐺‘(2nd ‘(𝐽𝑛))) ∈ 𝑦𝐴 𝑦 / 𝑥𝐵)
38 nfcv 2312 . . . 4 𝑦𝐵
39 nfcsb1v 3082 . . . 4 𝑥𝑦 / 𝑥𝐵
40 csbeq1a 3058 . . . 4 (𝑥 = 𝑦𝐵 = 𝑦 / 𝑥𝐵)
4138, 39, 40cbviun 3910 . . 3 𝑥𝐴 𝐵 = 𝑦𝐴 𝑦 / 𝑥𝐵
4237, 41eleqtrrdi 2264 . 2 ((𝜑𝑛𝑈) → ((𝐹‘(1st ‘(𝐽𝑛))) / 𝑥𝐺‘(2nd ‘(𝐽𝑛))) ∈ 𝑥𝐴 𝐵)
43 ctiunct.h . 2 𝐻 = (𝑛𝑈 ↦ ((𝐹‘(1st ‘(𝐽𝑛))) / 𝑥𝐺‘(2nd ‘(𝐽𝑛))))
4442, 43fmptd 5650 1 (𝜑𝐻:𝑈 𝑥𝐴 𝐵)
Colors of variables: wff set class
Syntax hints:  wi 4  wa 103  wb 104  DECID wdc 829   = wceq 1348  wcel 2141  wral 2448  wrex 2449  {crab 2452  [wsbc 2955  csb 3049  wss 3121   ciun 3873  cmpt 4050  ωcom 4574   × cxp 4609  wf 5194  ontowfo 5196  1-1-ontowf1o 5197  cfv 5198  1st c1st 6117  2nd c2nd 6118
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-io 704  ax-5 1440  ax-7 1441  ax-gen 1442  ax-ie1 1486  ax-ie2 1487  ax-8 1497  ax-10 1498  ax-11 1499  ax-i12 1500  ax-bndl 1502  ax-4 1503  ax-17 1519  ax-i9 1523  ax-ial 1527  ax-i5r 1528  ax-14 2144  ax-ext 2152  ax-sep 4107  ax-pow 4160  ax-pr 4194
This theorem depends on definitions:  df-bi 116  df-3an 975  df-tru 1351  df-nf 1454  df-sb 1756  df-eu 2022  df-mo 2023  df-clab 2157  df-cleq 2163  df-clel 2166  df-nfc 2301  df-ral 2453  df-rex 2454  df-rab 2457  df-v 2732  df-sbc 2956  df-csb 3050  df-un 3125  df-in 3127  df-ss 3134  df-pw 3568  df-sn 3589  df-pr 3590  df-op 3592  df-uni 3797  df-iun 3875  df-br 3990  df-opab 4051  df-mpt 4052  df-id 4278  df-xp 4617  df-rel 4618  df-cnv 4619  df-co 4620  df-dm 4621  df-rn 4622  df-res 4623  df-ima 4624  df-iota 5160  df-fun 5200  df-fn 5201  df-f 5202  df-fo 5204  df-fv 5206
This theorem is referenced by:  ctiunctlemfo  12394
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