Theorem fmptdf 7071

Description: A version of fmptd 7068 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 412	. . 3 ⊢ (𝜑 → (𝑥 ∈ 𝐴 → 𝐵 ∈ 𝐶))
4	1, 3	ralrimi 3236	. 2 ⊢ (𝜑 → ∀𝑥 ∈ 𝐴 𝐵 ∈ 𝐶)
5		fmptdf.3	. . 3 ⊢ 𝐹 = (𝑥 ∈ 𝐴 ↦ 𝐵)
6	5	fmpt 7064	. 2 ⊢ (∀𝑥 ∈ 𝐴 𝐵 ∈ 𝐶 ↔ 𝐹:𝐴⟶𝐶)
7	4, 6	sylib 218	1 ⊢ (𝜑 → 𝐹:𝐴⟶𝐶)

Syntax hints:   → wi 4   ∧ wa 395   = wceq 1542  Ⅎwnf 1785   ∈ wcel 2114  ∀wral 3052   ↦ cmpt 5181  ⟶wf 6496

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1912  ax-6 1969  ax-7 2010  ax-8 2116  ax-9 2124  ax-10 2147  ax-11 2163  ax-12 2185  ax-ext 2709  ax-sep 5243  ax-pr 5379

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3an 1089  df-tru 1545  df-fal 1555  df-ex 1782  df-nf 1786  df-sb 2069  df-mo 2540  df-eu 2570  df-clab 2716  df-cleq 2729  df-clel 2812  df-nfc 2886  df-ral 3053  df-rex 3063  df-rab 3402  df-v 3444  df-dif 3906  df-un 3908  df-in 3910  df-ss 3920  df-nul 4288  df-if 4482  df-sn 4583  df-pr 4585  df-op 4589  df-br 5101  df-opab 5163  df-mpt 5182  df-id 5527  df-xp 5638  df-rel 5639  df-cnv 5640  df-co 5641  df-dm 5642  df-rn 5643  df-res 5644  df-ima 5645  df-fun 6502  df-fn 6503  df-f 6504

This theorem is referenced by:  elrspunidl  33521  gsumesum  34237  voliune  34407  sdclem2  37993  fmptd2f  45593  limsupubuzmpt  46077  xlimmnfmpt  46201  xlimpnfmpt  46202  cncfiooicclem1  46251  stoweidlem35  46393  stoweidlem42  46400  stoweidlem48  46406  stirlinglem8  46439  sge0revalmpt  46736  sge0gerpmpt  46760  sge0ssrempt  46763  sge0ltfirpmpt  46766  sge0lempt  46768  sge0splitmpt  46769  sge0ss  46770  sge0rernmpt  46780  sge0lefimpt  46781  sge0clmpt  46783  sge0ltfirpmpt2  46784  sge0isummpt  46788  sge0xadd  46793  sge0fsummptf  46794  sge0snmptf  46795  sge0ge0mpt  46796  sge0repnfmpt  46797  sge0pnffigtmpt  46798  sge0gtfsumgt  46801  sge0pnfmpt  46803  meadjiun  46824  meaiunlelem  46826  omeiunle  46875  omeiunlempt  46878  opnvonmbllem1  46990  hoimbl2  47023  vonhoire  47030  vonn0ioo2  47048  vonn0icc2  47050  issmfdmpt  47106  smfconst  47107  smfadd  47123  smfpimcclem  47165  smflimmpt  47168  smflimsuplem2  47179  gsumsplit2f  48540  fsuppmptdmf  48738