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Mirrors > Home > ILE Home > Th. List > iinin2m | Unicode version |
Description: Indexed intersection of intersection. Compare to Theorem "Distributive laws" in [Enderton] p. 30. (Contributed by Jim Kingdon, 17-Aug-2018.) |
Ref | Expression |
---|---|
iinin2m |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | r19.28mv 3419 |
. . . 4
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2 | elin 3223 |
. . . . 5
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3 | 2 | ralbii 2413 |
. . . 4
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4 | vex 2658 |
. . . . . 6
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5 | eliin 3782 |
. . . . . 6
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6 | 4, 5 | ax-mp 7 |
. . . . 5
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7 | 6 | anbi2i 450 |
. . . 4
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8 | 1, 3, 7 | 3bitr4g 222 |
. . 3
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9 | eliin 3782 |
. . . 4
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10 | 4, 9 | ax-mp 7 |
. . 3
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11 | elin 3223 |
. . 3
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12 | 8, 10, 11 | 3bitr4g 222 |
. 2
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13 | 12 | eqrdv 2111 |
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-io 681 ax-5 1404 ax-7 1405 ax-gen 1406 ax-ie1 1450 ax-ie2 1451 ax-8 1463 ax-10 1464 ax-11 1465 ax-i12 1466 ax-bndl 1467 ax-4 1468 ax-17 1487 ax-i9 1491 ax-ial 1495 ax-i5r 1496 ax-ext 2095 |
This theorem depends on definitions: df-bi 116 df-tru 1315 df-nf 1418 df-sb 1717 df-clab 2100 df-cleq 2106 df-clel 2109 df-nfc 2242 df-ral 2393 df-v 2657 df-in 3041 df-iin 3780 |
This theorem is referenced by: iinin1m 3846 |
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