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Mirrors > Home > ILE Home > Th. List > difopab | Unicode version |
Description: The difference of two ordered-pair abstractions. (Contributed by Stefan O'Rear, 17-Jan-2015.) |
Ref | Expression |
---|---|
difopab |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | relopab 4482 |
. . 3
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2 | reldif 4475 |
. . 3
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3 | 1, 2 | ax-mp 7 |
. 2
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4 | relopab 4482 |
. 2
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5 | sbcan 2856 |
. . . 4
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6 | sbcan 2856 |
. . . . 5
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7 | 6 | sbcbii 2873 |
. . . 4
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8 | opelopabsb 4015 |
. . . . 5
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9 | vex 2604 |
. . . . . . 7
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10 | sbcng 2854 |
. . . . . . 7
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11 | 9, 10 | ax-mp 7 |
. . . . . 6
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12 | vex 2604 |
. . . . . . . 8
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13 | sbcng 2854 |
. . . . . . . 8
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14 | 12, 13 | ax-mp 7 |
. . . . . . 7
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15 | 14 | sbcbii 2873 |
. . . . . 6
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16 | opelopabsb 4015 |
. . . . . . 7
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17 | 16 | notbii 626 |
. . . . . 6
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18 | 11, 15, 17 | 3bitr4ri 211 |
. . . . 5
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19 | 8, 18 | anbi12i 447 |
. . . 4
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20 | 5, 7, 19 | 3bitr4ri 211 |
. . 3
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21 | eldif 2982 |
. . 3
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22 | opelopabsb 4015 |
. . 3
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23 | 20, 21, 22 | 3bitr4i 210 |
. 2
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24 | 3, 4, 23 | eqrelriiv 4452 |
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 104 ax-ia2 105 ax-ia3 106 ax-in1 576 ax-in2 577 ax-io 662 ax-5 1376 ax-7 1377 ax-gen 1378 ax-ie1 1422 ax-ie2 1423 ax-8 1435 ax-10 1436 ax-11 1437 ax-i12 1438 ax-bndl 1439 ax-4 1440 ax-14 1445 ax-17 1459 ax-i9 1463 ax-ial 1467 ax-i5r 1468 ax-ext 2063 ax-sep 3896 ax-pow 3948 ax-pr 3964 |
This theorem depends on definitions: df-bi 115 df-3an 921 df-tru 1287 df-fal 1290 df-nf 1390 df-sb 1686 df-eu 1944 df-mo 1945 df-clab 2068 df-cleq 2074 df-clel 2077 df-nfc 2208 df-ral 2353 df-rex 2354 df-v 2603 df-sbc 2816 df-dif 2975 df-un 2977 df-in 2979 df-ss 2986 df-pw 3384 df-sn 3404 df-pr 3405 df-op 3407 df-opab 3840 df-xp 4369 df-rel 4370 |
This theorem is referenced by: (None) |
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