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Theorem fmpti 5750
Description: Functionality of the mapping operation. (Contributed by NM, 19-Mar-2005.) (Revised by Mario Carneiro, 1-Sep-2015.)
Hypotheses
Ref Expression
fmpt.1 𝐹 = (𝑥𝐴𝐶)
fmpti.2 (𝑥𝐴𝐶𝐵)
Assertion
Ref Expression
fmpti 𝐹:𝐴𝐵
Distinct variable groups:   𝑥,𝐴   𝑥,𝐵
Allowed substitution hints:   𝐶(𝑥)   𝐹(𝑥)

Proof of Theorem fmpti
StepHypRef Expression
1 fmpti.2 . . 3 (𝑥𝐴𝐶𝐵)
21rgen 2560 . 2 𝑥𝐴 𝐶𝐵
3 fmpt.1 . . 3 𝐹 = (𝑥𝐴𝐶)
43fmpt 5748 . 2 (∀𝑥𝐴 𝐶𝐵𝐹:𝐴𝐵)
52, 4mpbi 145 1 𝐹:𝐴𝐵
Colors of variables: wff set class
Syntax hints:  wi 4   = wceq 1373  wcel 2177  wral 2485  cmpt 4116  wf 5281
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 711  ax-5 1471  ax-7 1472  ax-gen 1473  ax-ie1 1517  ax-ie2 1518  ax-8 1528  ax-10 1529  ax-11 1530  ax-i12 1531  ax-bndl 1533  ax-4 1534  ax-17 1550  ax-i9 1554  ax-ial 1558  ax-i5r 1559  ax-14 2180  ax-ext 2188  ax-sep 4173  ax-pow 4229  ax-pr 4264
This theorem depends on definitions:  df-bi 117  df-3an 983  df-tru 1376  df-nf 1485  df-sb 1787  df-eu 2058  df-mo 2059  df-clab 2193  df-cleq 2199  df-clel 2202  df-nfc 2338  df-ral 2490  df-rex 2491  df-rab 2494  df-v 2775  df-sbc 3003  df-un 3174  df-in 3176  df-ss 3183  df-pw 3623  df-sn 3644  df-pr 3645  df-op 3647  df-uni 3860  df-br 4055  df-opab 4117  df-mpt 4118  df-id 4353  df-xp 4694  df-rel 4695  df-cnv 4696  df-co 4697  df-dm 4698  df-rn 4699  df-res 4700  df-ima 4701  df-iota 5246  df-fun 5287  df-fn 5288  df-f 5289  df-fv 5293
This theorem is referenced by:  omp1eomlem  7217  fnn0nninf  10615  cjf  11243  ref  11251  imf  11252  absf  11506  eff  12059  sinf  12100  cosf  12101  bitsf  12342  fnum  12597  fden  12598  divcnap  15122  dveflem  15283  2lgslem1b  15651  nnsf  16114  nninfself  16122
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