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| Mirrors > Home > ILE Home > Th. List > dmex | Unicode version | ||
| Description: The domain of a set is a set. Corollary 6.8(2) of [TakeutiZaring] p. 26. (Contributed by NM, 7-Jul-2008.) |
| Ref | Expression |
|---|---|
| dmex.1 |
|
| Ref | Expression |
|---|---|
| dmex |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | dmex.1 |
. 2
| |
| 2 | dmexg 4943 |
. 2
| |
| 3 | 1, 2 | ax-mp 5 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 711 ax-5 1470 ax-7 1471 ax-gen 1472 ax-ie1 1516 ax-ie2 1517 ax-8 1527 ax-10 1528 ax-11 1529 ax-i12 1530 ax-bndl 1532 ax-4 1533 ax-17 1549 ax-i9 1553 ax-ial 1557 ax-i5r 1558 ax-13 2178 ax-14 2179 ax-ext 2187 ax-sep 4163 ax-pow 4219 ax-pr 4254 ax-un 4481 |
| This theorem depends on definitions: df-bi 117 df-3an 983 df-tru 1376 df-nf 1484 df-sb 1786 df-eu 2057 df-mo 2058 df-clab 2192 df-cleq 2198 df-clel 2201 df-nfc 2337 df-rex 2490 df-v 2774 df-un 3170 df-in 3172 df-ss 3179 df-pw 3618 df-sn 3639 df-pr 3640 df-op 3642 df-uni 3851 df-br 4046 df-opab 4107 df-cnv 4684 df-dm 4686 df-rn 4687 |
| This theorem is referenced by: ofmres 6223 fo1st 6245 tfrlem8 6406 rdgtfr 6462 rdgruledefgg 6463 rdgon 6474 mapprc 6741 ixpprc 6808 ixpssmap2g 6816 ixpssmapg 6817 bren 6837 brdomg 6839 fundmen 6900 xpassen 6927 mapen 6945 ssenen 6950 hashfacen 10983 shftfval 11165 prdsvallem 13137 prdsval 13138 blfn 14346 metuex 14350 |
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