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Mirrors > Home > ILE Home > Th. List > nfvd | Unicode version |
Description: nfv 1508 with antecedent. Useful in proofs of deduction versions of bound-variable hypothesis builders such as nfimd 1564. (Contributed by Mario Carneiro, 6-Oct-2016.) |
Ref | Expression |
---|---|
nfvd |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nfv 1508 | . 2 | |
2 | 1 | a1i 9 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wnf 1436 |
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-gen 1425 ax-17 1506 |
This theorem depends on definitions: df-bi 116 df-nf 1437 |
This theorem is referenced by: sbiedv 1762 cbvaldva 1898 cbvexdva 1899 vtocld 2733 sbcied 2940 nfunid 3738 peano2 4504 iota2d 5108 iota2 5109 riota5f 5747 mpoxopoveq 6130 bdsepnft 13074 strcollnft 13171 |
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