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Theorem nfima 6063
Description: Bound-variable hypothesis builder for image. (Contributed by NM, 30-Dec-1996.) (Proof shortened by Andrew Salmon, 27-Aug-2011.)
Hypotheses
Ref Expression
nfima.1 Ⅎ𝑥𝐴
nfima.2 Ⅎ𝑥𝐵
Assertion
Ref Expression
nfima Ⅎ𝑥(𝐴 “ 𝐵)

Proof of Theorem nfima
StepHypRef Expression
1 df-ima 5663 . 2 (𝐴 “ 𝐵) = ran (𝐴 ↾ 𝐵)
2 nfima.1 . . . 4 Ⅎ𝑥𝐴
3 nfima.2 . . . 4 Ⅎ𝑥𝐵
42, 3nfres 5971 . . 3 Ⅎ𝑥(𝐴 ↾ 𝐵)
54nfrn 5933 . 2 Ⅎ𝑥ran (𝐴 ↾ 𝐵)
61, 5nfcxfr 2920 1 Ⅎ𝑥(𝐴 “ 𝐵)
Colors of variables:    wff setvar class
This proof depends on syntax axioms:  Ⅎwnfc 2907  ran crn 5651   ↾ cres 5652   “ cima 5653
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-11 2193  ax-12 2212  ax-ext 2732
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-clab 2739  df-cleq 2752  df-clel 2835  df-nfc 2909  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-br 5103  df-opab 5167  df-xp 5656  df-cnv 5658  df-dm 5660  df-rn 5661  df-res 5662  df-ima 5663
This theorem is used by:  nfimad  6064  csbima12  6075  nfpred  6309  nfsup  9447  nfoi  9512  nfseq  14158  gsum2d2  20194  ptbasfi  23906  mbfposr  25979  itg1climres  26041  limciun  26220  nfseqs  28679  funimass4f  33279  poimirlem16  38648  poimirlem19  38651  aomclem8  44157  areaquad  44312  nfcoll  45334  binomcxplemdvbinom  45431  binomcxplemdvsum  45433  binomcxplemnotnn0  45434  rfcnpre1  46130  rfcnpre2  46142  smfpimcc  47912
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