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Theorem abrexdomjm 29317
Description: An indexed set is dominated by the indexing set. (Contributed by Jeff Madsen, 2-Sep-2009.)
Hypothesis
Ref Expression
abrexdomjm.1 (𝑦𝐴 → ∃*𝑥𝜑)
Assertion
Ref Expression
abrexdomjm (𝐴𝑉 → {𝑥 ∣ ∃𝑦𝐴 𝜑} ≼ 𝐴)
Distinct variable group:   𝑥,𝐴,𝑦
Allowed substitution hints:   𝜑(𝑥,𝑦)   𝑉(𝑥,𝑦)

Proof of Theorem abrexdomjm
StepHypRef Expression
1 df-rex 2915 . . . 4 (∃𝑦𝐴 𝜑 ↔ ∃𝑦(𝑦𝐴𝜑))
21abbii 2737 . . 3 {𝑥 ∣ ∃𝑦𝐴 𝜑} = {𝑥 ∣ ∃𝑦(𝑦𝐴𝜑)}
3 rnopab 5359 . . 3 ran {⟨𝑦, 𝑥⟩ ∣ (𝑦𝐴𝜑)} = {𝑥 ∣ ∃𝑦(𝑦𝐴𝜑)}
42, 3eqtr4i 2645 . 2 {𝑥 ∣ ∃𝑦𝐴 𝜑} = ran {⟨𝑦, 𝑥⟩ ∣ (𝑦𝐴𝜑)}
5 dmopabss 5325 . . . . 5 dom {⟨𝑦, 𝑥⟩ ∣ (𝑦𝐴𝜑)} ⊆ 𝐴
6 ssexg 4795 . . . . 5 ((dom {⟨𝑦, 𝑥⟩ ∣ (𝑦𝐴𝜑)} ⊆ 𝐴𝐴𝑉) → dom {⟨𝑦, 𝑥⟩ ∣ (𝑦𝐴𝜑)} ∈ V)
75, 6mpan 705 . . . 4 (𝐴𝑉 → dom {⟨𝑦, 𝑥⟩ ∣ (𝑦𝐴𝜑)} ∈ V)
8 funopab 5911 . . . . . . 7 (Fun {⟨𝑦, 𝑥⟩ ∣ (𝑦𝐴𝜑)} ↔ ∀𝑦∃*𝑥(𝑦𝐴𝜑))
9 abrexdomjm.1 . . . . . . . 8 (𝑦𝐴 → ∃*𝑥𝜑)
10 moanimv 2529 . . . . . . . 8 (∃*𝑥(𝑦𝐴𝜑) ↔ (𝑦𝐴 → ∃*𝑥𝜑))
119, 10mpbir 221 . . . . . . 7 ∃*𝑥(𝑦𝐴𝜑)
128, 11mpgbir 1724 . . . . . 6 Fun {⟨𝑦, 𝑥⟩ ∣ (𝑦𝐴𝜑)}
1312a1i 11 . . . . 5 (𝐴𝑉 → Fun {⟨𝑦, 𝑥⟩ ∣ (𝑦𝐴𝜑)})
14 funfn 5906 . . . . 5 (Fun {⟨𝑦, 𝑥⟩ ∣ (𝑦𝐴𝜑)} ↔ {⟨𝑦, 𝑥⟩ ∣ (𝑦𝐴𝜑)} Fn dom {⟨𝑦, 𝑥⟩ ∣ (𝑦𝐴𝜑)})
1513, 14sylib 208 . . . 4 (𝐴𝑉 → {⟨𝑦, 𝑥⟩ ∣ (𝑦𝐴𝜑)} Fn dom {⟨𝑦, 𝑥⟩ ∣ (𝑦𝐴𝜑)})
16 fnrndomg 9343 . . . 4 (dom {⟨𝑦, 𝑥⟩ ∣ (𝑦𝐴𝜑)} ∈ V → ({⟨𝑦, 𝑥⟩ ∣ (𝑦𝐴𝜑)} Fn dom {⟨𝑦, 𝑥⟩ ∣ (𝑦𝐴𝜑)} → ran {⟨𝑦, 𝑥⟩ ∣ (𝑦𝐴𝜑)} ≼ dom {⟨𝑦, 𝑥⟩ ∣ (𝑦𝐴𝜑)}))
177, 15, 16sylc 65 . . 3 (𝐴𝑉 → ran {⟨𝑦, 𝑥⟩ ∣ (𝑦𝐴𝜑)} ≼ dom {⟨𝑦, 𝑥⟩ ∣ (𝑦𝐴𝜑)})
18 ssdomg 7986 . . . 4 (𝐴𝑉 → (dom {⟨𝑦, 𝑥⟩ ∣ (𝑦𝐴𝜑)} ⊆ 𝐴 → dom {⟨𝑦, 𝑥⟩ ∣ (𝑦𝐴𝜑)} ≼ 𝐴))
195, 18mpi 20 . . 3 (𝐴𝑉 → dom {⟨𝑦, 𝑥⟩ ∣ (𝑦𝐴𝜑)} ≼ 𝐴)
20 domtr 7994 . . 3 ((ran {⟨𝑦, 𝑥⟩ ∣ (𝑦𝐴𝜑)} ≼ dom {⟨𝑦, 𝑥⟩ ∣ (𝑦𝐴𝜑)} ∧ dom {⟨𝑦, 𝑥⟩ ∣ (𝑦𝐴𝜑)} ≼ 𝐴) → ran {⟨𝑦, 𝑥⟩ ∣ (𝑦𝐴𝜑)} ≼ 𝐴)
2117, 19, 20syl2anc 692 . 2 (𝐴𝑉 → ran {⟨𝑦, 𝑥⟩ ∣ (𝑦𝐴𝜑)} ≼ 𝐴)
224, 21syl5eqbr 4679 1 (𝐴𝑉 → {𝑥 ∣ ∃𝑦𝐴 𝜑} ≼ 𝐴)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 384  wex 1702  wcel 1988  ∃*wmo 2469  {cab 2606  wrex 2910  Vcvv 3195  wss 3567   class class class wbr 4644  {copab 4703  dom cdm 5104  ran crn 5105  Fun wfun 5870   Fn wfn 5871  cdom 7938
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1720  ax-4 1735  ax-5 1837  ax-6 1886  ax-7 1933  ax-8 1990  ax-9 1997  ax-10 2017  ax-11 2032  ax-12 2045  ax-13 2244  ax-ext 2600  ax-rep 4762  ax-sep 4772  ax-nul 4780  ax-pow 4834  ax-pr 4897  ax-un 6934  ax-ac2 9270
This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3or 1037  df-3an 1038  df-tru 1484  df-ex 1703  df-nf 1708  df-sb 1879  df-eu 2472  df-mo 2473  df-clab 2607  df-cleq 2613  df-clel 2616  df-nfc 2751  df-ne 2792  df-ral 2914  df-rex 2915  df-reu 2916  df-rmo 2917  df-rab 2918  df-v 3197  df-sbc 3430  df-csb 3527  df-dif 3570  df-un 3572  df-in 3574  df-ss 3581  df-pss 3583  df-nul 3908  df-if 4078  df-pw 4151  df-sn 4169  df-pr 4171  df-tp 4173  df-op 4175  df-uni 4428  df-int 4467  df-iun 4513  df-br 4645  df-opab 4704  df-mpt 4721  df-tr 4744  df-id 5014  df-eprel 5019  df-po 5025  df-so 5026  df-fr 5063  df-se 5064  df-we 5065  df-xp 5110  df-rel 5111  df-cnv 5112  df-co 5113  df-dm 5114  df-rn 5115  df-res 5116  df-ima 5117  df-pred 5668  df-ord 5714  df-on 5715  df-suc 5717  df-iota 5839  df-fun 5878  df-fn 5879  df-f 5880  df-f1 5881  df-fo 5882  df-f1o 5883  df-fv 5884  df-isom 5885  df-riota 6596  df-ov 6638  df-oprab 6639  df-mpt2 6640  df-1st 7153  df-2nd 7154  df-wrecs 7392  df-recs 7453  df-er 7727  df-map 7844  df-en 7941  df-dom 7942  df-card 8750  df-acn 8753  df-ac 8924
This theorem is referenced by:  abrexdom2jm  29318
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