ILE Home Intuitionistic Logic Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  ILE Home  >  Th. List  >  fmpt3d GIF version

Theorem fmpt3d 5803
Description: Domain and codomain of the mapping operation; deduction form. (Contributed by Thierry Arnoux, 4-Jun-2017.)
Hypotheses
Ref Expression
fmpt3d.1 (𝜑𝐹 = (𝑥𝐴𝐵))
fmpt3d.2 ((𝜑𝑥𝐴) → 𝐵𝐶)
Assertion
Ref Expression
fmpt3d (𝜑𝐹:𝐴𝐶)
Distinct variable groups:   𝑥,𝐴   𝑥,𝐶   𝜑,𝑥
Allowed substitution hints:   𝐵(𝑥)   𝐹(𝑥)

Proof of Theorem fmpt3d
StepHypRef Expression
1 fmpt3d.2 . . 3 ((𝜑𝑥𝐴) → 𝐵𝐶)
21fmpttd 5802 . 2 (𝜑 → (𝑥𝐴𝐵):𝐴𝐶)
3 fmpt3d.1 . . 3 (𝜑𝐹 = (𝑥𝐴𝐵))
43feq1d 5469 . 2 (𝜑 → (𝐹:𝐴𝐶 ↔ (𝑥𝐴𝐵):𝐴𝐶))
52, 4mpbird 167 1 (𝜑𝐹:𝐴𝐶)
Colors of variables: wff set class
Syntax hints:  wi 4  wa 104   = wceq 1397  wcel 2202  cmpt 4150  wf 5322
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 716  ax-5 1495  ax-7 1496  ax-gen 1497  ax-ie1 1541  ax-ie2 1542  ax-8 1552  ax-10 1553  ax-11 1554  ax-i12 1555  ax-bndl 1557  ax-4 1558  ax-17 1574  ax-i9 1578  ax-ial 1582  ax-i5r 1583  ax-14 2205  ax-ext 2213  ax-sep 4207  ax-pow 4264  ax-pr 4299
This theorem depends on definitions:  df-bi 117  df-3an 1006  df-tru 1400  df-nf 1509  df-sb 1811  df-eu 2082  df-mo 2083  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2363  df-ral 2515  df-rex 2516  df-rab 2519  df-v 2804  df-sbc 3032  df-un 3204  df-in 3206  df-ss 3213  df-pw 3654  df-sn 3675  df-pr 3676  df-op 3678  df-uni 3894  df-br 4089  df-opab 4151  df-mpt 4152  df-id 4390  df-xp 4731  df-rel 4732  df-cnv 4733  df-co 4734  df-dm 4735  df-rn 4736  df-res 4737  df-ima 4738  df-iota 5286  df-fun 5328  df-fn 5329  df-f 5330  df-fv 5334
This theorem is referenced by:  pfxf  11262  1arithlem3  12937  grpinvf  13629  lspf  14402  vtxdgfif  16143  bj-charfun  16402  bj-charfundc  16403
  Copyright terms: Public domain W3C validator