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Mirrors > Home > ILE Home > Th. List > dmin | Unicode version |
Description: The domain of an intersection belong to the intersection of domains. Theorem 6 of [Suppes] p. 60. (Contributed by NM, 15-Sep-2004.) |
Ref | Expression |
---|---|
dmin |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 19.40 1624 | . . 3 | |
2 | vex 2733 | . . . . 5 | |
3 | 2 | eldm2 4809 | . . . 4 |
4 | elin 3310 | . . . . 5 | |
5 | 4 | exbii 1598 | . . . 4 |
6 | 3, 5 | bitri 183 | . . 3 |
7 | elin 3310 | . . . 4 | |
8 | 2 | eldm2 4809 | . . . . 5 |
9 | 2 | eldm2 4809 | . . . . 5 |
10 | 8, 9 | anbi12i 457 | . . . 4 |
11 | 7, 10 | bitri 183 | . . 3 |
12 | 1, 6, 11 | 3imtr4i 200 | . 2 |
13 | 12 | ssriv 3151 | 1 |
Colors of variables: wff set class |
Syntax hints: wa 103 wex 1485 wcel 2141 cin 3120 wss 3121 cop 3586 cdm 4611 |
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 704 ax-5 1440 ax-7 1441 ax-gen 1442 ax-ie1 1486 ax-ie2 1487 ax-8 1497 ax-10 1498 ax-11 1499 ax-i12 1500 ax-bndl 1502 ax-4 1503 ax-17 1519 ax-i9 1523 ax-ial 1527 ax-i5r 1528 ax-ext 2152 |
This theorem depends on definitions: df-bi 116 df-3an 975 df-tru 1351 df-nf 1454 df-sb 1756 df-clab 2157 df-cleq 2163 df-clel 2166 df-nfc 2301 df-v 2732 df-un 3125 df-in 3127 df-ss 3134 df-sn 3589 df-pr 3590 df-op 3592 df-br 3990 df-dm 4621 |
This theorem is referenced by: rnin 5020 |
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