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Theorem nfcjust 2163
Description: Justification theorem for df-nfc 2164. (Contributed by Mario Carneiro, 13-Oct-2016.)
Assertion
Ref Expression
nfcjust  F/  F/
Distinct variable groups:   ,,   ,,
Allowed substitution hint:   ()

Proof of Theorem nfcjust
StepHypRef Expression
1 nfv 1418 . . 3  F/
2 eleq1 2097 . . 3
31, 2nfbidf 1429 . 2  F/  F/
43cbvalv 1791 1  F/  F/
Colors of variables: wff set class
Syntax hints:   wb 98  wal 1240   F/wnf 1346   wcel 1390
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 99  ax-ia2 100  ax-ia3 101  ax-5 1333  ax-7 1334  ax-gen 1335  ax-ie1 1379  ax-ie2 1380  ax-8 1392  ax-4 1397  ax-17 1416  ax-i9 1420  ax-ial 1424  ax-ext 2019
This theorem depends on definitions:  df-bi 110  df-nf 1347  df-cleq 2030  df-clel 2033
This theorem is referenced by: (None)
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