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Mirrors > Home > ILE Home > Th. List > nfbid | Unicode version |
Description: If in a context ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Ref | Expression |
---|---|
nfbid.1 |
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nfbid.2 |
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Ref | Expression |
---|---|
nfbid |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | dfbi2 386 |
. 2
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2 | nfbid.1 |
. . . 4
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3 | nfbid.2 |
. . . 4
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4 | 2, 3 | nfimd 1565 |
. . 3
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5 | 3, 2 | nfimd 1565 |
. . 3
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6 | 4, 5 | nfand 1548 |
. 2
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7 | 1, 6 | nfxfrd 1452 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() |
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-5 1424 ax-gen 1426 ax-4 1488 ax-ial 1515 ax-i5r 1516 |
This theorem depends on definitions: df-bi 116 df-nf 1438 |
This theorem is referenced by: nfbi 1569 nfeudv 2015 nfeqd 2297 nfiotadw 5099 iota2df 5120 bdsepnft 13256 |
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