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Mirrors > Home > ILE Home > Th. List > nfbrd | Unicode version |
Description: Deduction version of bound-variable hypothesis builder nfbr 4075. (Contributed by NM, 13-Dec-2005.) (Revised by Mario Carneiro, 14-Oct-2016.) |
Ref | Expression |
---|---|
nfbrd.2 |
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nfbrd.3 |
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nfbrd.4 |
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Ref | Expression |
---|---|
nfbrd |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-br 4030 |
. 2
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2 | nfbrd.2 |
. . . 4
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3 | nfbrd.4 |
. . . 4
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4 | 2, 3 | nfopd 3821 |
. . 3
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5 | nfbrd.3 |
. . 3
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6 | 4, 5 | nfeld 2352 |
. 2
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7 | 1, 6 | nfxfrd 1486 |
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 106 ax-ia2 107 ax-ia3 108 ax-io 710 ax-5 1458 ax-7 1459 ax-gen 1460 ax-ie1 1504 ax-ie2 1505 ax-8 1515 ax-10 1516 ax-11 1517 ax-i12 1518 ax-bndl 1520 ax-4 1521 ax-17 1537 ax-i9 1541 ax-ial 1545 ax-i5r 1546 ax-ext 2175 |
This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-nf 1472 df-sb 1774 df-clab 2180 df-cleq 2186 df-clel 2189 df-nfc 2325 df-v 2762 df-un 3157 df-sn 3624 df-pr 3625 df-op 3627 df-br 4030 |
This theorem is referenced by: nfbr 4075 |
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