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Theorem nfrecs 8367
Description: Bound-variable hypothesis builder for recs. (Contributed by Stefan O'Rear, 18-Jan-2015.)
Hypothesis
Ref Expression
nfrecs.f 𝑥𝐹
Assertion
Ref Expression
nfrecs 𝑥recs(𝐹)

Proof of Theorem nfrecs
StepHypRef Expression
1 df-recs 8364 . 2 recs(𝐹) = wrecs( E , On, 𝐹)
2 nfcv 2924 . . 3 𝑥 E
3 nfcv 2924 . . 3 𝑥On
4 nfrecs.f . . 3 𝑥𝐹
52, 3, 4nfwrecs 8317 . 2 𝑥wrecs( E , On, 𝐹)
61, 5nfcxfr 2922 1 𝑥recs(𝐹)
Colors of variables:    wff setvar class
This proof depends on syntax axioms:  wnfc 2909   E cep 5558  Oncon0 6361  wrecscwrecs 8314  recscrecs 8363
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 2215  ax-ext 2734
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 2741  df-cleq 2754  df-clel 2837  df-nfc 2911  df-ral 3079  df-rex 3089  df-rab 3415  df-v 3455  df-dif 3905  df-un 3907  df-in 3909  df-ss 3919  df-nul 4283  df-if 4486  df-sn 4588  df-pr 4590  df-op 4594  df-uni 4871  df-br 5108  df-opab 5172  df-xp 5665  df-cnv 5667  df-co 5668  df-dm 5669  df-rn 5670  df-res 5671  df-ima 5672  df-pred 6303  df-iota 6493  df-fv 6545  df-ov 7420  df-frecs 8284  df-wrecs 8315  df-recs 8364
This theorem is used by:  nfrdg  8407  nfoi  9490  aomclem8  43910
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