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Theorem fsovfvd 38124
Description: Value of the operator, (𝐴𝑂𝐵), which maps between maps from one base set to subsets of the second to maps from the second base set to subsets of the first for base sets, 𝐴 and 𝐵, when applied to function 𝐹. (Contributed by RP, 25-Apr-2021.)
Hypotheses
Ref Expression
fsovd.fs 𝑂 = (𝑎 ∈ V, 𝑏 ∈ V ↦ (𝑓 ∈ (𝒫 𝑏𝑚 𝑎) ↦ (𝑦𝑏 ↦ {𝑥𝑎𝑦 ∈ (𝑓𝑥)})))
fsovd.a (𝜑𝐴𝑉)
fsovd.b (𝜑𝐵𝑊)
fsovfvd.g 𝐺 = (𝐴𝑂𝐵)
fsovfvd.f (𝜑𝐹 ∈ (𝒫 𝐵𝑚 𝐴))
Assertion
Ref Expression
fsovfvd (𝜑 → (𝐺𝐹) = (𝑦𝐵 ↦ {𝑥𝐴𝑦 ∈ (𝐹𝑥)}))
Distinct variable groups:   𝐴,𝑎,𝑏,𝑓,𝑥   𝑦,𝐴,𝑎,𝑏,𝑓   𝐵,𝑎,𝑏,𝑓,𝑦   𝑓,𝐹,𝑥   𝑦,𝐹   𝜑,𝑎,𝑏,𝑓
Allowed substitution hints:   𝜑(𝑥,𝑦)   𝐵(𝑥)   𝐹(𝑎,𝑏)   𝐺(𝑥,𝑦,𝑓,𝑎,𝑏)   𝑂(𝑥,𝑦,𝑓,𝑎,𝑏)   𝑉(𝑥,𝑦,𝑓,𝑎,𝑏)   𝑊(𝑥,𝑦,𝑓,𝑎,𝑏)

Proof of Theorem fsovfvd
StepHypRef Expression
1 fsovfvd.g . . 3 𝐺 = (𝐴𝑂𝐵)
2 fsovd.fs . . . 4 𝑂 = (𝑎 ∈ V, 𝑏 ∈ V ↦ (𝑓 ∈ (𝒫 𝑏𝑚 𝑎) ↦ (𝑦𝑏 ↦ {𝑥𝑎𝑦 ∈ (𝑓𝑥)})))
3 fsovd.a . . . 4 (𝜑𝐴𝑉)
4 fsovd.b . . . 4 (𝜑𝐵𝑊)
52, 3, 4fsovd 38122 . . 3 (𝜑 → (𝐴𝑂𝐵) = (𝑓 ∈ (𝒫 𝐵𝑚 𝐴) ↦ (𝑦𝐵 ↦ {𝑥𝐴𝑦 ∈ (𝑓𝑥)})))
61, 5syl5eq 2666 . 2 (𝜑𝐺 = (𝑓 ∈ (𝒫 𝐵𝑚 𝐴) ↦ (𝑦𝐵 ↦ {𝑥𝐴𝑦 ∈ (𝑓𝑥)})))
7 fveq1 6177 . . . . . 6 (𝑓 = 𝐹 → (𝑓𝑥) = (𝐹𝑥))
87eleq2d 2685 . . . . 5 (𝑓 = 𝐹 → (𝑦 ∈ (𝑓𝑥) ↔ 𝑦 ∈ (𝐹𝑥)))
98rabbidv 3184 . . . 4 (𝑓 = 𝐹 → {𝑥𝐴𝑦 ∈ (𝑓𝑥)} = {𝑥𝐴𝑦 ∈ (𝐹𝑥)})
109mpteq2dv 4736 . . 3 (𝑓 = 𝐹 → (𝑦𝐵 ↦ {𝑥𝐴𝑦 ∈ (𝑓𝑥)}) = (𝑦𝐵 ↦ {𝑥𝐴𝑦 ∈ (𝐹𝑥)}))
1110adantl 482 . 2 ((𝜑𝑓 = 𝐹) → (𝑦𝐵 ↦ {𝑥𝐴𝑦 ∈ (𝑓𝑥)}) = (𝑦𝐵 ↦ {𝑥𝐴𝑦 ∈ (𝐹𝑥)}))
12 fsovfvd.f . 2 (𝜑𝐹 ∈ (𝒫 𝐵𝑚 𝐴))
13 mptexg 6469 . . 3 (𝐵𝑊 → (𝑦𝐵 ↦ {𝑥𝐴𝑦 ∈ (𝐹𝑥)}) ∈ V)
144, 13syl 17 . 2 (𝜑 → (𝑦𝐵 ↦ {𝑥𝐴𝑦 ∈ (𝐹𝑥)}) ∈ V)
156, 11, 12, 14fvmptd 6275 1 (𝜑 → (𝐺𝐹) = (𝑦𝐵 ↦ {𝑥𝐴𝑦 ∈ (𝐹𝑥)}))
Colors of variables: wff setvar class
Syntax hints:  wi 4   = wceq 1481  wcel 1988  {crab 2913  Vcvv 3195  𝒫 cpw 4149  cmpt 4720  cfv 5876  (class class class)co 6635  cmpt2 6637  𝑚 cmap 7842
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-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-pr 4897
This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  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-rab 2918  df-v 3197  df-sbc 3430  df-csb 3527  df-dif 3570  df-un 3572  df-in 3574  df-ss 3581  df-nul 3908  df-if 4078  df-pw 4151  df-sn 4169  df-pr 4171  df-op 4175  df-uni 4428  df-iun 4513  df-br 4645  df-opab 4704  df-mpt 4721  df-id 5014  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-iota 5839  df-fun 5878  df-fn 5879  df-f 5880  df-f1 5881  df-fo 5882  df-f1o 5883  df-fv 5884  df-ov 6638  df-oprab 6639  df-mpt2 6640
This theorem is referenced by:  fsovfvfvd  38125  fsovcnvfvd  38129
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