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Mirrors > Home > ILE Home > Th. List > rniun | Unicode version |
Description: The range of an indexed union. (Contributed by Mario Carneiro, 29-May-2015.) |
Ref | Expression |
---|---|
rniun |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | rexcom4 2753 | . . . 4 | |
2 | vex 2733 | . . . . . 6 | |
3 | 2 | elrn2 4851 | . . . . 5 |
4 | 3 | rexbii 2477 | . . . 4 |
5 | eliun 3875 | . . . . 5 | |
6 | 5 | exbii 1598 | . . . 4 |
7 | 1, 4, 6 | 3bitr4ri 212 | . . 3 |
8 | 2 | elrn2 4851 | . . 3 |
9 | eliun 3875 | . . 3 | |
10 | 7, 8, 9 | 3bitr4i 211 | . 2 |
11 | 10 | eqriv 2167 | 1 |
Colors of variables: wff set class |
Syntax hints: wceq 1348 wex 1485 wcel 2141 wrex 2449 cop 3584 ciun 3871 crn 4610 |
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-14 2144 ax-ext 2152 ax-sep 4105 ax-pow 4158 ax-pr 4192 |
This theorem depends on definitions: df-bi 116 df-3an 975 df-tru 1351 df-nf 1454 df-sb 1756 df-eu 2022 df-mo 2023 df-clab 2157 df-cleq 2163 df-clel 2166 df-nfc 2301 df-ral 2453 df-rex 2454 df-v 2732 df-un 3125 df-in 3127 df-ss 3134 df-pw 3566 df-sn 3587 df-pr 3588 df-op 3590 df-iun 3873 df-br 3988 df-opab 4049 df-cnv 4617 df-dm 4619 df-rn 4620 |
This theorem is referenced by: rnuni 5020 fun11iun 5461 ennnfonelemrn 12361 |
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