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Theorem nfrecs 8370
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 8367 . 2 recs(𝐹) = wrecs( E , On, 𝐹)
2 nfcv 2928 . . 3 𝑥 E
3 nfcv 2928 . . 3 𝑥On
4 nfrecs.f . . 3 𝑥𝐹
52, 3, 4nfwrecs 8320 . 2 𝑥wrecs( E , On, 𝐹)
61, 5nfcxfr 2926 1 𝑥recs(𝐹)
Colors of variables:    wff setvar class
This proof depends on syntax axioms:  wnfc 2913   E cep 5565  Oncon0 6367  wrecscwrecs 8317  recscrecs 8366
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 2148  ax-9 2156  ax-10 2179  ax-11 2195  ax-12 2216  ax-ext 2738
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 2745  df-cleq 2758  df-clel 2841  df-nfc 2915  df-ral 3083  df-rex 3093  df-rab 3420  df-v 3460  df-dif 3911  df-un 3913  df-in 3915  df-ss 3925  df-nul 4290  df-if 4493  df-sn 4595  df-pr 4597  df-op 4601  df-uni 4878  df-br 5115  df-opab 5179  df-xp 5672  df-cnv 5674  df-co 5675  df-dm 5676  df-rn 5677  df-res 5678  df-ima 5679  df-pred 6309  df-iota 6499  df-fv 6551  df-ov 7426  df-frecs 8287  df-wrecs 8318  df-recs 8367
This theorem is used by:  nfrdg  8410  nfoi  9486  aomclem8  43829
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