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Theorem nfima 6027
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 𝑥𝐴
nfima.2 𝑥𝐵
Assertion
Ref Expression
nfima 𝑥(𝐴𝐵)

Proof of Theorem nfima
StepHypRef Expression
1 df-ima 5637 . 2 (𝐴𝐵) = ran (𝐴𝐵)
2 nfima.1 . . . 4 𝑥𝐴
3 nfima.2 . . . 4 𝑥𝐵
42, 3nfres 5940 . . 3 𝑥(𝐴𝐵)
54nfrn 5901 . 2 𝑥ran (𝐴𝐵)
61, 5nfcxfr 2897 1 𝑥(𝐴𝐵)
Colors of variables: wff setvar class
Syntax hints:  wnfc 2884  ran crn 5625  cres 5626  cima 5627
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
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-clab 2716  df-cleq 2729  df-clel 2812  df-nfc 2886  df-rab 3391  df-v 3432  df-dif 3893  df-un 3895  df-in 3897  df-ss 3907  df-nul 4275  df-if 4468  df-sn 4569  df-pr 4571  df-op 4575  df-br 5087  df-opab 5149  df-xp 5630  df-cnv 5632  df-dm 5634  df-rn 5635  df-res 5636  df-ima 5637
This theorem is referenced by:  nfimad  6028  csbima12  6038  nfpred  6264  nfsup  9357  nfoi  9422  nfseq  13964  gsum2d2  19940  ptbasfi  23556  mbfposr  25629  itg1climres  25691  limciun  25871  nfseqs  28293  funimass4f  32725  poimirlem16  37971  poimirlem19  37974  aomclem8  43507  areaquad  43662  nfcoll  44701  binomcxplemdvbinom  44798  binomcxplemdvsum  44800  binomcxplemnotnn0  44801  rfcnpre1  45468  rfcnpre2  45480  smfpimcc  47254
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