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Theorem dmmpt 6198
Description: The domain of the mapping operation in general. (Contributed by NM, 16-May-1995.) (Revised by Mario Carneiro, 22-Mar-2015.)
Hypothesis
Ref Expression
dmmpt.1 𝐹 = (𝑥𝐴𝐵)
Assertion
Ref Expression
dmmpt dom 𝐹 = {𝑥𝐴𝐵 ∈ V}

Proof of Theorem dmmpt
StepHypRef Expression
1 dfdm4 5844 . 2 dom 𝐹 = ran 𝐹
2 dfrn4 6160 . 2 ran 𝐹 = (𝐹 “ V)
3 dmmpt.1 . . 3 𝐹 = (𝑥𝐴𝐵)
43mptpreima 6196 . 2 (𝐹 “ V) = {𝑥𝐴𝐵 ∈ V}
51, 2, 43eqtri 2763 1 dom 𝐹 = {𝑥𝐴𝐵 ∈ V}
Colors of variables: wff setvar class
Syntax hints:   = wceq 1541  wcel 2113  {crab 3399  Vcvv 3440  cmpt 5179  ccnv 5623  dom cdm 5624  ran crn 5625  cima 5627
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1796  ax-4 1810  ax-5 1911  ax-6 1968  ax-7 2009  ax-8 2115  ax-9 2123  ax-10 2146  ax-11 2162  ax-12 2184  ax-ext 2708  ax-sep 5241  ax-nul 5251  ax-pr 5377
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3an 1088  df-tru 1544  df-fal 1554  df-ex 1781  df-nf 1785  df-sb 2068  df-mo 2539  df-eu 2569  df-clab 2715  df-cleq 2728  df-clel 2811  df-nfc 2885  df-rab 3400  df-v 3442  df-dif 3904  df-un 3906  df-in 3908  df-ss 3918  df-nul 4286  df-if 4480  df-sn 4581  df-pr 4583  df-op 4587  df-br 5099  df-opab 5161  df-mpt 5180  df-xp 5630  df-rel 5631  df-cnv 5632  df-dm 5634  df-rn 5635  df-res 5636  df-ima 5637
This theorem is referenced by:  dmmptss  6199  dmmptg  6200  dmmptd  6637  fvmpti  6940  fvmptss  6953  fvmptss2  6967  mptexgf  7168  tz9.12lem3  9701  cardf2  9855  pmtrsn  19448  00lsp  20932  rgrx0ndm  29667  abrexexd  32584  funcnvmpt  32745  mptctf  32795  issibf  34490  rdgprc0  35985  imageval  36122  dmmptdff  45467  dmmptssf  45476  dmmptdf2  45477  dvcosre  46156  itgsinexplem1  46198  stirlinglem14  46331  fvmptrabdm  47539
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