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Mirrors > Home > ILE Home > Th. List > nfs1f | Unicode version |
Description: If ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Ref | Expression |
---|---|
nfs1f.1 |
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Ref | Expression |
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nfs1f |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nfs1f.1 |
. . . 4
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2 | 1 | nfri 1480 |
. . 3
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3 | 2 | sbh 1730 |
. 2
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4 | 3, 1 | nfxfr 1431 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-5 1404 ax-gen 1406 ax-ie1 1450 ax-ie2 1451 ax-4 1468 ax-i9 1491 ax-ial 1495 |
This theorem depends on definitions: df-bi 116 df-nf 1418 df-sb 1717 |
This theorem is referenced by: (None) |
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