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Mirrors > Home > ILE Home > Th. List > nfexd | Unicode version |
Description: If ![]() ![]() ![]() ![]() ![]() |
Ref | Expression |
---|---|
nfald.1 |
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nfald.2 |
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Ref | Expression |
---|---|
nfexd |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nfald.1 |
. . . . . . 7
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2 | 1 | nfri 1458 |
. . . . . 6
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3 | nfald.2 |
. . . . . . 7
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4 | df-nf 1396 |
. . . . . . 7
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5 | 3, 4 | sylib 121 |
. . . . . 6
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6 | 2, 5 | alrimih 1404 |
. . . . 5
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7 | alcom 1413 |
. . . . 5
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8 | 6, 7 | sylib 121 |
. . . 4
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9 | exim 1536 |
. . . . 5
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10 | 9 | alimi 1390 |
. . . 4
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11 | 8, 10 | syl 14 |
. . 3
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12 | 19.12 1601 |
. . . . 5
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13 | 12 | imim2i 12 |
. . . 4
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14 | 13 | alimi 1390 |
. . 3
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15 | 11, 14 | syl 14 |
. 2
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16 | df-nf 1396 |
. 2
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17 | 15, 16 | sylibr 133 |
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 1382 ax-7 1383 ax-gen 1384 ax-ie1 1428 ax-ie2 1429 ax-4 1446 ax-ial 1473 |
This theorem depends on definitions: df-bi 116 df-nf 1396 |
This theorem is referenced by: nfsbxy 1867 nfsbxyt 1868 nfeudv 1964 nfmod 1966 nfeld 2245 nfrexdxy 2412 |
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