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Theorem elpreimad 7015
Description: Membership in the preimage of a set under a function. (Contributed by Glauco Siliprandi, 23-Oct-2021.)
Hypotheses
Ref Expression
elpreimad.f (𝜑𝐹 Fn 𝐴)
elpreimad.b (𝜑𝐵𝐴)
elpreimad.c (𝜑 → (𝐹𝐵) ∈ 𝐶)
Assertion
Ref Expression
elpreimad (𝜑𝐵 ∈ (𝐹𝐶))

Proof of Theorem elpreimad
StepHypRef Expression
1 elpreimad.b . 2 (𝜑𝐵𝐴)
2 elpreimad.c . 2 (𝜑 → (𝐹𝐵) ∈ 𝐶)
3 elpreimad.f . . 3 (𝜑𝐹 Fn 𝐴)
4 elpreima 7014 . . 3 (𝐹 Fn 𝐴 → (𝐵 ∈ (𝐹𝐶) ↔ (𝐵𝐴 ∧ (𝐹𝐵) ∈ 𝐶)))
53, 4syl 17 . 2 (𝜑 → (𝐵 ∈ (𝐹𝐶) ↔ (𝐵𝐴 ∧ (𝐹𝐵) ∈ 𝐶)))
61, 2, 5mpbir2and 714 1 (𝜑𝐵 ∈ (𝐹𝐶))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 206  wa 395  wcel 2114  ccnv 5633  cima 5637   Fn wfn 6497  cfv 6502
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-12 2185  ax-ext 2709  ax-sep 5245  ax-nul 5255  ax-pr 5381
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-ne 2934  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-uni 4866  df-br 5101  df-opab 5163  df-id 5529  df-xp 5640  df-rel 5641  df-cnv 5642  df-co 5643  df-dm 5644  df-rn 5645  df-res 5646  df-ima 5647  df-iota 6458  df-fun 6504  df-fn 6505  df-fv 6510
This theorem is referenced by:  fpwwe2lem8  10563  rhmpreimaidl  21249  evlslem3  22052  elrgspnsubrunlem2  33348  rhmpreimaprmidl  33550  ply1degltel  33693  ply1degleel  33694  ply1degltlss  33695  exsslsb  33780  ply1degltdimlem  33806  ply1degltdim  33807  dimkerim  33811  lvecendof1f1o  33817  zndvdchrrhm  42371  smfsuplem1  47198
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