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Theorem elabf2 13019
 Description: One implication of elabf 2827. (Contributed by BJ, 21-Nov-2019.)
Hypotheses
Ref Expression
elabf2.nf
elabf2.s
elabf2.1
Assertion
Ref Expression
elabf2
Distinct variable group:   ,
Allowed substitution hints:   ()   ()

Proof of Theorem elabf2
StepHypRef Expression
1 elabf2.s . 2
2 nfcv 2281 . . 3
3 elabf2.nf . . 3
4 elabf2.1 . . 3
52, 3, 4elabgf2 13017 . 2
61, 5ax-mp 5 1
 Colors of variables: wff set class Syntax hints:   wi 4   wceq 1331  wnf 1436   wcel 1480  cab 2125  cvv 2686 This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-io 698  ax-5 1423  ax-7 1424  ax-gen 1425  ax-ie1 1469  ax-ie2 1470  ax-8 1482  ax-10 1483  ax-11 1484  ax-i12 1485  ax-bndl 1486  ax-4 1487  ax-17 1506  ax-i9 1510  ax-ial 1514  ax-i5r 1515  ax-ext 2121 This theorem depends on definitions:  df-bi 116  df-tru 1334  df-nf 1437  df-sb 1736  df-clab 2126  df-cleq 2132  df-clel 2135  df-nfc 2270  df-v 2688 This theorem is referenced by:  elab2a  13021  bj-bdfindis  13175
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