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Theorem nfneld 2613
Description: Bound-variable hypothesis builder for inequality. (Contributed by David Abernethy, 26-Jun-2011.) (Revised by Mario Carneiro, 7-Oct-2016.)
Hypotheses
Ref Expression
nfneld.1  F/_
nfneld.2  F/_
Assertion
Ref Expression
nfneld  F/

Proof of Theorem nfneld
StepHypRef Expression
1 df-nel 2519 . 2
2 nfneld.1 . . . 4  F/_
3 nfneld.2 . . . 4  F/_
42, 3nfeld 2504 . . 3  F/
54nfnd 1791 . 2  F/
61, 5nfxfrd 1571 1  F/
Colors of variables: wff setvar class
Syntax hints:   wn 3   wi 4   F/wnf 1544   wcel 1710   F/_wnfc 2476   wnel 2517
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-ext 2334
This theorem depends on definitions:  df-bi 177  df-an 360  df-ex 1542  df-nf 1545  df-cleq 2346  df-clel 2349  df-nfc 2478  df-nel 2519
This theorem is referenced by: (None)
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