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Theorem nfrecs 8366
Description: Bound-variable hypothesis builder for recs. (Contributed by Stefan O'Rear, 18-Jan-2015.)
Hypothesis
Ref Expression
nfrecs.f Ⅎ𝑥𝐹
Assertion
Ref Expression
nfrecs Ⅎ𝑥recs(𝐹)

Proof of Theorem nfrecs
StepHypRef Expression
1 df-recs 8363 . 2 recs(𝐹) = wrecs( E , On, 𝐹)
2 nfcv 2923 . . 3 Ⅎ𝑥 E
3 nfcv 2923 . . 3 Ⅎ𝑥On
4 nfrecs.f . . 3 Ⅎ𝑥𝐹
52, 3, 4nfwrecs 8316 . 2 Ⅎ𝑥wrecs( E , On, 𝐹)
61, 5nfcxfr 2921 1 Ⅎ𝑥recs(𝐹)
Colors of variables:    wff setvar class
This proof depends on syntax axioms:  Ⅎwnfc 2908   E cep 5550  Oncon0 6355  wrecscwrecs 8313  recscrecs 8362
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 2733
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 2740  df-cleq 2753  df-clel 2836  df-nfc 2910  df-ral 3078  df-rex 3088  df-rab 3414  df-v 3453  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-uni 4868  df-br 5104  df-opab 5168  df-xp 5657  df-cnv 5659  df-co 5660  df-dm 5661  df-rn 5662  df-res 5663  df-ima 5664  df-pred 6297  df-iota 6487  df-fv 6539  df-ov 7415  df-frecs 8283  df-wrecs 8314  df-recs 8363
This theorem is used by:  nfrdg  8406  nfoi  9492  aomclem8  44021
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