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Mirrors > Home > ILE Home > Th. List > dmxpid | Unicode version |
Description: The domain of a square Cartesian product. (Contributed by NM, 28-Jul-1995.) (Revised by Jim Kingdon, 11-Apr-2023.) |
Ref | Expression |
---|---|
dmxpid |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-xp 4617 | . . 3 | |
2 | 1 | dmeqi 4812 | . 2 |
3 | elex2 2746 | . . . 4 | |
4 | 3 | rgen 2523 | . . 3 |
5 | dmopab3 4824 | . . 3 | |
6 | 4, 5 | mpbi 144 | . 2 |
7 | 2, 6 | eqtri 2191 | 1 |
Colors of variables: wff set class |
Syntax hints: wa 103 wceq 1348 wex 1485 wcel 2141 wral 2448 copab 4049 cxp 4609 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-14 2144 ax-ext 2152 ax-sep 4107 ax-pow 4160 ax-pr 4194 |
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-v 2732 df-un 3125 df-in 3127 df-ss 3134 df-pw 3568 df-sn 3589 df-pr 3590 df-op 3592 df-br 3990 df-opab 4051 df-xp 4617 df-dm 4621 |
This theorem is referenced by: dmxpin 4833 xpid11 4834 sqxpeq0 5034 xpider 6584 psmetdmdm 13118 xmetdmdm 13150 |
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