Theorem fmptdf 7058

Description: A version of fmptd 7055 using bound-variable hypothesis instead of a distinct variable condition for 𝜑. (Contributed by Glauco Siliprandi, 29-Jun-2017.)

Hypotheses

Ref	Expression
fmptdf.1	⊢ Ⅎ𝑥𝜑
fmptdf.2	⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → 𝐵 ∈ 𝐶)
fmptdf.3	⊢ 𝐹 = (𝑥 ∈ 𝐴 ↦ 𝐵)

Assertion

Ref	Expression
fmptdf	⊢ (𝜑 → 𝐹:𝐴⟶𝐶)

Distinct variable groups:   𝑥,𝐴   𝑥,𝐶

Allowed substitution hints:   𝜑(𝑥)   𝐵(𝑥)   𝐹(𝑥)

Proof of Theorem fmptdf

Step	Hyp	Ref	Expression
1		fmptdf.1	. . 3 ⊢ Ⅎ𝑥𝜑
2		fmptdf.2	. . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → 𝐵 ∈ 𝐶)
3	2	ex 413	. . 3 ⊢ (𝜑 → (𝑥 ∈ 𝐴 → 𝐵 ∈ 𝐶))
4	1, 3	ralrimi 3237	. 2 ⊢ (𝜑 → ∀𝑥 ∈ 𝐴 𝐵 ∈ 𝐶)
5		fmptdf.3	. . 3 ⊢ 𝐹 = (𝑥 ∈ 𝐴 ↦ 𝐵)
6	5	fmpt 7051	. 2 ⊢ (∀𝑥 ∈ 𝐴 𝐵 ∈ 𝐶 ↔ 𝐹:𝐴⟶𝐶)
7	4, 6	sylib 219	1 ⊢ (𝜑 → 𝐹:𝐴⟶𝐶)

Syntax hints:   → wi 4   ∧ wa 396   = wceq 1547  Ⅎwnf 1790   ∈ wcel 2119  ∀wral 3053   ↦ cmpt 5153  ⟶wf 6481

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1802  ax-4 1816  ax-5 1917  ax-6 1974  ax-7 2015  ax-8 2121  ax-9 2129  ax-10 2152  ax-11 2168  ax-12 2189  ax-ext 2711  ax-sep 5218  ax-pr 5362

This theorem depends on definitions:  df-bi 208  df-an 397  df-or 854  df-3an 1094  df-tru 1550  df-fal 1560  df-ex 1787  df-nf 1791  df-sb 2074  df-mo 2543  df-eu 2573  df-clab 2718  df-cleq 2731  df-clel 2814  df-nfc 2888  df-ral 3054  df-rex 3064  df-rab 3392  df-v 3433  df-dif 3886  df-un 3888  df-in 3890  df-ss 3900  df-nul 4262  df-if 4455  df-sn 4556  df-pr 4558  df-op 4562  df-br 5073  df-opab 5135  df-mpt 5154  df-id 5513  df-xp 5624  df-rel 5625  df-cnv 5626  df-co 5627  df-dm 5628  df-rn 5629  df-res 5630  df-ima 5631  df-fun 6487  df-fn 6488  df-f 6489

This theorem is referenced by:  elrspunidl  33511  gsumesum  34243  voliune  34413  sdclem2  38109  fmptd2f  45679  limsupubuzmpt  46162  xlimmnfmpt  46286  xlimpnfmpt  46287  cncfiooicclem1  46336  stoweidlem35  46478  stoweidlem42  46485  stoweidlem48  46491  stirlinglem8  46524  sge0revalmpt  46821  sge0gerpmpt  46845  sge0ssrempt  46848  sge0ltfirpmpt  46851  sge0lempt  46853  sge0splitmpt  46854  sge0ss  46855  sge0rernmpt  46865  sge0lefimpt  46866  sge0clmpt  46868  sge0ltfirpmpt2  46869  sge0isummpt  46873  sge0xadd  46878  sge0fsummptf  46879  sge0snmptf  46880  sge0ge0mpt  46881  sge0repnfmpt  46882  sge0pnffigtmpt  46883  sge0gtfsumgt  46886  sge0pnfmpt  46888  meadjiun  46909  meaiunlelem  46911  omeiunle  46960  omeiunlempt  46963  opnvonmbllem1  47075  hoimbl2  47108  vonhoire  47115  vonn0ioo2  47133  vonn0icc2  47135  issmfdmpt  47191  smfconst  47192  smfadd  47208  smfpimcclem  47250  smflimmpt  47253  smflimsuplem2  47264  gsumsplit2f  48671  fsuppmptdmf  48869