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Mirrors > Home > ILE Home > Th. List > dmiin | Unicode version |
Description: Domain of an intersection. (Contributed by FL, 15-Oct-2012.) |
Ref | Expression |
---|---|
dmiin |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nfii1 3897 | . . . 4 | |
2 | 1 | nfdm 4848 | . . 3 |
3 | 2 | ssiinf 3915 | . 2 |
4 | iinss2 3918 | . . 3 | |
5 | dmss 4803 | . . 3 | |
6 | 4, 5 | syl 14 | . 2 |
7 | 3, 6 | mprgbir 2524 | 1 |
Colors of variables: wff set class |
Syntax hints: wcel 2136 wss 3116 ciin 3867 cdm 4604 |
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 1435 ax-7 1436 ax-gen 1437 ax-ie1 1481 ax-ie2 1482 ax-8 1492 ax-10 1493 ax-11 1494 ax-i12 1495 ax-bndl 1497 ax-4 1498 ax-17 1514 ax-i9 1518 ax-ial 1522 ax-i5r 1523 ax-ext 2147 |
This theorem depends on definitions: df-bi 116 df-3an 970 df-tru 1346 df-nf 1449 df-sb 1751 df-clab 2152 df-cleq 2158 df-clel 2161 df-nfc 2297 df-ral 2449 df-v 2728 df-un 3120 df-in 3122 df-ss 3129 df-sn 3582 df-pr 3583 df-op 3585 df-iin 3869 df-br 3983 df-dm 4614 |
This theorem is referenced by: (None) |
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