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Theorem fvelimabd 6959
Description: Deduction form of fvelimab 6958. (Contributed by Stanislas Polu, 9-Mar-2020.)
Hypotheses
Ref Expression
fvelimabd.1 (𝜑 → 𝐹 Fn 𝐴)
fvelimabd.2 (𝜑 → 𝐵 ⊆ 𝐴)
Assertion
Ref Expression
fvelimabd (𝜑 → (𝐶 ∈ (𝐹 “ 𝐵) ↔ ∃𝑥 ∈ 𝐵 (𝐹‘𝑥) = 𝐶))
Distinct variable groups:   𝑥,𝐵   𝑥,𝐶   𝑥,𝐹
Allowed substitution hints:   𝜑(𝑥)   𝐴(𝑥)

Proof of Theorem fvelimabd
StepHypRef Expression
1 fvelimabd.1 . 2 (𝜑 → 𝐹 Fn 𝐴)
2 fvelimabd.2 . 2 (𝜑 → 𝐵 ⊆ 𝐴)
3 fvelimab 6958 . 2 ((𝐹 Fn 𝐴 ∧ 𝐵 ⊆ 𝐴) → (𝐶 ∈ (𝐹 “ 𝐵) ↔ ∃𝑥 ∈ 𝐵 (𝐹‘𝑥) = 𝐶))
41, 2, 3syl2anc 596 1 (𝜑 → (𝐶 ∈ (𝐹 “ 𝐵) ↔ ∃𝑥 ∈ 𝐵 (𝐹‘𝑥) = 𝐶))
Colors of variables:    wff setvar class
This proof depends on syntax axioms:   → wi 4   ↔ wb 209   = wceq 1569   ∈ wcel 2144  ∃wrex 3086   ⊆ wss 3895   “ cima 5653   Fn wfn 6534  ‘cfv 6539
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1827  ax-4 1841  ax-5 1942  ax-6 1999  ax-7 2040  ax-8 2146  ax-9 2154  ax-10 2177  ax-12 2212  ax-ext 2732  ax-sep 5248  ax-nul 5259  ax-pr 5390
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1572  df-fal 1582  df-ex 1812  df-nf 1816  df-sb 2099  df-mo 2564  df-eu 2594  df-clab 2739  df-cleq 2752  df-clel 2835  df-ne 2956  df-ral 3077  df-rex 3087  df-rab 3413  df-v 3452  df-ss 3896  df-dif 4047  df-in 4091  df-un 4151  df-nul 4279  df-if 4482  df-sn 4585  df-pr 4587  df-op 4835  df-uni 4867  df-br 5103  df-opab 5167  df-id 5545  df-xp 5656  df-rel 5657  df-cnv 5658  df-co 5659  df-dm 5660  df-rn 5661  df-res 5662  df-ima 5663  df-iota 6494  df-fun 6541  df-fn 6542  df-fv 6547
This theorem is used by:  unima  6961  resf1extb  7947  swrdrn3  14807  ghmqusnsglem1  19500  ghmquskerlem1  19503  lmhmima  21328  mdegldg  26390  ig1peu  26499  2ndimaxp  33288  fnpreimac  33312  fsuppcurry1  33363  fsuppcurry2  33364  esplyfv1  34248  esplyfv  34249  esplyfval3  34251  fnrelpredd  35773  bj-gabima  37946  extoimad  45258  upgrimpths  49101
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