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Theorem nfima 6064
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 5668 . 2 (𝐴𝐵) = ran (𝐴𝐵)
2 nfima.1 . . . 4 𝑥𝐴
3 nfima.2 . . . 4 𝑥𝐵
42, 3nfres 5974 . . 3 𝑥(𝐴𝐵)
54nfrn 5936 . 2 𝑥ran (𝐴𝐵)
61, 5nfcxfr 2920 1 𝑥(𝐴𝐵)
Colors of variables:    wff setvar class
This proof depends on syntax axioms:  wnfc 2907  ran crn 5656  cres 5657  cima 5658
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1943  ax-6 2000  ax-7 2041  ax-8 2147  ax-9 2155  ax-10 2178  ax-11 2194  ax-12 2213  ax-ext 2732
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-nf 1817  df-sb 2100  df-clab 2739  df-cleq 2752  df-clel 2835  df-nfc 2909  df-rab 3413  df-v 3452  df-dif 3902  df-un 3904  df-in 3906  df-ss 3916  df-nul 4280  df-if 4483  df-sn 4585  df-pr 4587  df-op 4591  df-br 5104  df-opab 5168  df-xp 5661  df-cnv 5663  df-dm 5665  df-rn 5666  df-res 5667  df-ima 5668
This theorem is used by:  nfimad  6065  csbima12  6075  nfpred  6304  nfsup  9421  nfoi  9486  nfseq  14075  gsum2d2  20101  ptbasfi  23807  mbfposr  25880  itg1climres  25942  limciun  26121  nfseqs  28552  funimass4f  33110  poimirlem16  38385  poimirlem19  38388  aomclem8  43902  areaquad  44057  nfcoll  45080  binomcxplemdvbinom  45177  binomcxplemdvsum  45179  binomcxplemnotnn0  45180  rfcnpre1  45853  rfcnpre2  45865  smfpimcc  47636
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