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Mirrors > Home > ILE Home > Th. List > sbnfc2 | Unicode version |
Description: Two ways of expressing
"![]() ![]() |
Ref | Expression |
---|---|
sbnfc2 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | vex 2692 |
. . . . 5
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2 | csbtt 3019 |
. . . . 5
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3 | 1, 2 | mpan 421 |
. . . 4
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4 | vex 2692 |
. . . . 5
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5 | csbtt 3019 |
. . . . 5
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6 | 4, 5 | mpan 421 |
. . . 4
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7 | 3, 6 | eqtr4d 2176 |
. . 3
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8 | 7 | alrimivv 1848 |
. 2
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9 | nfv 1509 |
. . 3
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10 | eleq2 2204 |
. . . . . 6
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11 | sbsbc 2917 |
. . . . . . 7
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12 | sbcel2g 3028 |
. . . . . . . 8
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13 | 1, 12 | ax-mp 5 |
. . . . . . 7
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14 | 11, 13 | bitri 183 |
. . . . . 6
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15 | sbsbc 2917 |
. . . . . . 7
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16 | sbcel2g 3028 |
. . . . . . . 8
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17 | 4, 16 | ax-mp 5 |
. . . . . . 7
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18 | 15, 17 | bitri 183 |
. . . . . 6
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19 | 10, 14, 18 | 3bitr4g 222 |
. . . . 5
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20 | 19 | 2alimi 1433 |
. . . 4
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21 | sbnf2 1957 |
. . . 4
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22 | 20, 21 | sylibr 133 |
. . 3
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23 | 9, 22 | nfcd 2277 |
. 2
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24 | 8, 23 | impbii 125 |
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-io 699 ax-5 1424 ax-7 1425 ax-gen 1426 ax-ie1 1470 ax-ie2 1471 ax-8 1483 ax-10 1484 ax-11 1485 ax-i12 1486 ax-bndl 1487 ax-4 1488 ax-17 1507 ax-i9 1511 ax-ial 1515 ax-i5r 1516 ax-ext 2122 |
This theorem depends on definitions: df-bi 116 df-tru 1335 df-nf 1438 df-sb 1737 df-clab 2127 df-cleq 2133 df-clel 2136 df-nfc 2271 df-v 2691 df-sbc 2914 df-csb 3008 |
This theorem is referenced by: eusvnf 4382 |
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