MPE Home Metamath Proof Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >  ttukeylem1 Structured version   Visualization version   GIF version

Theorem ttukeylem1 10511
Description: Lemma for ttukey 10520. Expand out the property of being an element of a property of finite character. (Contributed by Mario Carneiro, 15-May-2015.)
Hypotheses
Ref Expression
ttukeylem.1 (𝜑𝐹:(card‘( 𝐴𝐵))–1-1-onto→( 𝐴𝐵))
ttukeylem.2 (𝜑𝐵𝐴)
ttukeylem.3 (𝜑 → ∀𝑥(𝑥𝐴 ↔ (𝒫 𝑥 ∩ Fin) ⊆ 𝐴))
Assertion
Ref Expression
ttukeylem1 (𝜑 → (𝐶𝐴 ↔ (𝒫 𝐶 ∩ Fin) ⊆ 𝐴))
Distinct variable groups:   𝑥,𝐶   𝑥,𝐴   𝑥,𝐵   𝑥,𝐹
Allowed substitution hint:   𝜑(𝑥)

Proof of Theorem ttukeylem1
StepHypRef Expression
1 elex 3479 . . 3 (𝐶𝐴𝐶 ∈ V)
21a1i 11 . 2 (𝜑 → (𝐶𝐴𝐶 ∈ V))
3 id 23 . . . . 5 ((𝒫 𝐶 ∩ Fin) ⊆ 𝐴 → (𝒫 𝐶 ∩ Fin) ⊆ 𝐴)
4 ssun1 4134 . . . . . . . 8 𝐴 ⊆ ( 𝐴𝐵)
5 undif1 4440 . . . . . . . 8 (( 𝐴𝐵) ∪ 𝐵) = ( 𝐴𝐵)
64, 5sseqtrri 3989 . . . . . . 7 𝐴 ⊆ (( 𝐴𝐵) ∪ 𝐵)
7 fvex 6901 . . . . . . . . 9 (card‘( 𝐴𝐵)) ∈ V
8 ttukeylem.1 . . . . . . . . . 10 (𝜑𝐹:(card‘( 𝐴𝐵))–1-1-onto→( 𝐴𝐵))
9 f1ofo 6835 . . . . . . . . . 10 (𝐹:(card‘( 𝐴𝐵))–1-1-onto→( 𝐴𝐵) → 𝐹:(card‘( 𝐴𝐵))–onto→( 𝐴𝐵))
108, 9syl 18 . . . . . . . . 9 (𝜑𝐹:(card‘( 𝐴𝐵))–onto→( 𝐴𝐵))
11 focdmex 7962 . . . . . . . . 9 ((card‘( 𝐴𝐵)) ∈ V → (𝐹:(card‘( 𝐴𝐵))–onto→( 𝐴𝐵) → ( 𝐴𝐵) ∈ V))
127, 10, 11mpsyl 69 . . . . . . . 8 (𝜑 → ( 𝐴𝐵) ∈ V)
13 ttukeylem.2 . . . . . . . 8 (𝜑𝐵𝐴)
14 unexg 7754 . . . . . . . 8 ((( 𝐴𝐵) ∈ V ∧ 𝐵𝐴) → (( 𝐴𝐵) ∪ 𝐵) ∈ V)
1512, 13, 14syl2anc 596 . . . . . . 7 (𝜑 → (( 𝐴𝐵) ∪ 𝐵) ∈ V)
16 ssexg 5295 . . . . . . 7 (( 𝐴 ⊆ (( 𝐴𝐵) ∪ 𝐵) ∧ (( 𝐴𝐵) ∪ 𝐵) ∈ V) → 𝐴 ∈ V)
176, 15, 16sylancr 599 . . . . . 6 (𝜑 𝐴 ∈ V)
18 uniexb 7772 . . . . . 6 (𝐴 ∈ V ↔ 𝐴 ∈ V)
1917, 18sylibr 237 . . . . 5 (𝜑𝐴 ∈ V)
20 ssexg 5295 . . . . 5 (((𝒫 𝐶 ∩ Fin) ⊆ 𝐴𝐴 ∈ V) → (𝒫 𝐶 ∩ Fin) ∈ V)
213, 19, 20syl2anr 609 . . . 4 ((𝜑 ∧ (𝒫 𝐶 ∩ Fin) ⊆ 𝐴) → (𝒫 𝐶 ∩ Fin) ∈ V)
22 infpwfidom 10031 . . . 4 ((𝒫 𝐶 ∩ Fin) ∈ V → 𝐶 ≼ (𝒫 𝐶 ∩ Fin))
23 reldom 8958 . . . . 5 Rel ≼
2423brrelex1i 5722 . . . 4 (𝐶 ≼ (𝒫 𝐶 ∩ Fin) → 𝐶 ∈ V)
2521, 22, 243syl 19 . . 3 ((𝜑 ∧ (𝒫 𝐶 ∩ Fin) ⊆ 𝐴) → 𝐶 ∈ V)
2625ex 418 . 2 (𝜑 → ((𝒫 𝐶 ∩ Fin) ⊆ 𝐴𝐶 ∈ V))
27 ttukeylem.3 . . 3 (𝜑 → ∀𝑥(𝑥𝐴 ↔ (𝒫 𝑥 ∩ Fin) ⊆ 𝐴))
28 eleq1 2854 . . . . 5 (𝑥 = 𝐶 → (𝑥𝐴𝐶𝐴))
29 pweq 4581 . . . . . . 7 (𝑥 = 𝐶 → 𝒫 𝑥 = 𝒫 𝐶)
3029ineq1d 4175 . . . . . 6 (𝑥 = 𝐶 → (𝒫 𝑥 ∩ Fin) = (𝒫 𝐶 ∩ Fin))
3130sseq1d 3971 . . . . 5 (𝑥 = 𝐶 → ((𝒫 𝑥 ∩ Fin) ⊆ 𝐴 ↔ (𝒫 𝐶 ∩ Fin) ⊆ 𝐴))
3228, 31bibi12d 348 . . . 4 (𝑥 = 𝐶 → ((𝑥𝐴 ↔ (𝒫 𝑥 ∩ Fin) ⊆ 𝐴) ↔ (𝐶𝐴 ↔ (𝒫 𝐶 ∩ Fin) ⊆ 𝐴)))
3332spcgv 3558 . . 3 (𝐶 ∈ V → (∀𝑥(𝑥𝐴 ↔ (𝒫 𝑥 ∩ Fin) ⊆ 𝐴) → (𝐶𝐴 ↔ (𝒫 𝐶 ∩ Fin) ⊆ 𝐴)))
3427, 33syl5com 32 . 2 (𝜑 → (𝐶 ∈ V → (𝐶𝐴 ↔ (𝒫 𝐶 ∩ Fin) ⊆ 𝐴)))
352, 26, 34pm5.21ndd 382 1 (𝜑 → (𝐶𝐴 ↔ (𝒫 𝐶 ∩ Fin) ⊆ 𝐴))
Colors of variables:    wff setvar class
This proof depends on syntax axioms:  wi 4  wb 209  wa 401  wal 1568   = wceq 1570  wcel 2146  Vcvv 3458  cdif 3905  cun 3906  cin 3907  wss 3908  𝒫 cpw 4567   cuni 4877   class class class wbr 5114  ontowfo 6541  1-1-ontowf1o 6542  cfv 6543  cdom 8950  Fincfn 8952  cardccrd 9940
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1943  ax-6 2000  ax-7 2041  ax-8 2148  ax-9 2156  ax-10 2179  ax-11 2195  ax-12 2216  ax-ext 2738  ax-rep 5243  ax-sep 5262  ax-nul 5274  ax-pow 5341  ax-pr 5409  ax-un 7745
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3or 1104  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-nf 1817  df-sb 2100  df-mo 2570  df-eu 2600  df-clab 2745  df-cleq 2758  df-clel 2841  df-nfc 2915  df-ne 2962  df-ral 3083  df-rex 3093  df-reu 3373  df-rab 3420  df-v 3460  df-sbc 3748  df-csb 3857  df-dif 3911  df-un 3913  df-in 3915  df-ss 3925  df-pss 3928  df-nul 4290  df-if 4493  df-pw 4569  df-sn 4595  df-pr 4597  df-op 4601  df-uni 4878  df-iun 4963  df-br 5115  df-opab 5179  df-mpt 5198  df-tr 5224  df-id 5561  df-eprel 5566  df-po 5574  df-so 5575  df-fr 5619  df-we 5621  df-xp 5672  df-rel 5673  df-cnv 5674  df-co 5675  df-dm 5676  df-rn 5677  df-res 5678  df-ima 5679  df-ord 6370  df-on 6371  df-lim 6372  df-suc 6373  df-iota 6499  df-fun 6545  df-fn 6546  df-f 6547  df-f1 6548  df-fo 6549  df-f1o 6550  df-fv 6551  df-om 7872  df-1o 8462  df-en 8953  df-dom 8954  df-fin 8956
This theorem is used by:  ttukeylem2  10512  ttukeylem6  10516
  Copyright terms: Public domain W3C validator