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Theorem nfiota 4343
Description: Bound-variable hypothesis builder for the class. (Contributed by NM, 23-Aug-2011.)
Hypothesis
Ref Expression
nfiota.1  F/
Assertion
Ref Expression
nfiota  F/_

Proof of Theorem nfiota
StepHypRef Expression
1 nftru 1554 . . 3  F/
2 nfiota.1 . . . 4  F/
32a1i 10 . . 3  F/
41, 3nfiotad 4342 . 2  F/_
54trud 1323 1  F/_
Colors of variables: wff setvar class
Syntax hints:   wtru 1316   F/wnf 1544   F/_wnfc 2476  cio 4337
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1546  ax-5 1557  ax-17 1616  ax-9 1654  ax-8 1675  ax-6 1729  ax-7 1734  ax-11 1746  ax-12 1925  ax-ext 2334
This theorem depends on definitions:  df-bi 177  df-or 359  df-an 360  df-tru 1319  df-ex 1542  df-nf 1545  df-sb 1649  df-clab 2340  df-cleq 2346  df-clel 2349  df-nfc 2478  df-ral 2619  df-rex 2620  df-sn 3741  df-uni 3892  df-iota 4339
This theorem is referenced by:  csbiotag  4371  nffv  5334
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