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Theorem fnmpti 5383
Description: Functionality and domain of an ordered-pair class abstraction. (Contributed by NM, 29-Jan-2004.) (Revised by Mario Carneiro, 31-Aug-2015.)
Hypotheses
Ref Expression
fnmpti.1 𝐵 ∈ V
fnmpti.2 𝐹 = (𝑥𝐴𝐵)
Assertion
Ref Expression
fnmpti 𝐹 Fn 𝐴
Distinct variable group:   𝑥,𝐴
Allowed substitution hints:   𝐵(𝑥)   𝐹(𝑥)

Proof of Theorem fnmpti
StepHypRef Expression
1 fnmpti.1 . . 3 𝐵 ∈ V
21rgenw 2549 . 2 𝑥𝐴 𝐵 ∈ V
3 fnmpti.2 . . 3 𝐹 = (𝑥𝐴𝐵)
43mptfng 5380 . 2 (∀𝑥𝐴 𝐵 ∈ V ↔ 𝐹 Fn 𝐴)
52, 4mpbi 145 1 𝐹 Fn 𝐴
Colors of variables: wff set class
Syntax hints:   = wceq 1364  wcel 2164  wral 2472  Vcvv 2760  cmpt 4091   Fn wfn 5250
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-io 710  ax-5 1458  ax-7 1459  ax-gen 1460  ax-ie1 1504  ax-ie2 1505  ax-8 1515  ax-10 1516  ax-11 1517  ax-i12 1518  ax-bndl 1520  ax-4 1521  ax-17 1537  ax-i9 1541  ax-ial 1545  ax-i5r 1546  ax-14 2167  ax-ext 2175  ax-sep 4148  ax-pow 4204  ax-pr 4239
This theorem depends on definitions:  df-bi 117  df-3an 982  df-tru 1367  df-nf 1472  df-sb 1774  df-eu 2045  df-mo 2046  df-clab 2180  df-cleq 2186  df-clel 2189  df-nfc 2325  df-ral 2477  df-rex 2478  df-v 2762  df-un 3158  df-in 3160  df-ss 3167  df-pw 3604  df-sn 3625  df-pr 3626  df-op 3628  df-br 4031  df-opab 4092  df-mpt 4093  df-id 4325  df-xp 4666  df-rel 4667  df-cnv 4668  df-co 4669  df-dm 4670  df-fun 5257  df-fn 5258
This theorem is referenced by:  dmmpti  5384  fconst  5450  eufnfv  5790  idref  5800  fo1st  6212  fo2nd  6213  reldm  6241  oafnex  6499  fnoei  6507  oeiexg  6508  mapsnf1o2  6752  nninfctlemfo  12180  1arith  12508  slotslfn  12647  topnfn  12858  fn0g  12961  fnmgp  13421  rlmfn  13952  blfn  14050  fncld  14277  xmetunirn  14537
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