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Mirrors > Home > ILE Home > Th. List > dmss | Unicode version |
Description: Subset theorem for domain. (Contributed by NM, 11-Aug-1994.) |
Ref | Expression |
---|---|
dmss |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ssel 3096 | . . . 4 | |
2 | 1 | eximdv 1853 | . . 3 |
3 | vex 2692 | . . . 4 | |
4 | 3 | eldm2 4745 | . . 3 |
5 | 3 | eldm2 4745 | . . 3 |
6 | 2, 4, 5 | 3imtr4g 204 | . 2 |
7 | 6 | ssrdv 3108 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wex 1469 wcel 1481 wss 3076 cop 3535 cdm 4547 |
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 1424 ax-7 1425 ax-gen 1426 ax-ie1 1470 ax-ie2 1471 ax-8 1483 ax-10 1484 ax-11 1485 ax-i12 1486 ax-bndl 1487 ax-4 1488 ax-17 1507 ax-i9 1511 ax-ial 1515 ax-i5r 1516 ax-ext 2122 |
This theorem depends on definitions: df-bi 116 df-3an 965 df-tru 1335 df-nf 1438 df-sb 1737 df-clab 2127 df-cleq 2133 df-clel 2136 df-nfc 2271 df-v 2691 df-un 3080 df-in 3082 df-ss 3089 df-sn 3538 df-pr 3539 df-op 3541 df-br 3938 df-dm 4557 |
This theorem is referenced by: dmeq 4747 dmv 4763 rnss 4777 dmiin 4793 dmxpss2 4979 ssxpbm 4982 ssxp1 4983 cocnvres 5071 relrelss 5073 funssxp 5300 fvun1 5495 fndmdif 5533 fneqeql2 5537 tposss 6151 smores 6197 smores2 6199 tfrlemibfn 6233 tfrlemiubacc 6235 tfr1onlembfn 6249 tfr1onlemubacc 6251 tfr1onlemres 6254 tfrcllembfn 6262 tfrcllemubacc 6264 tfrcllemres 6267 frecuzrdgtcl 10216 frecuzrdgdomlem 10221 ennnfonelemex 11963 strleund 12086 strleun 12087 dvbssntrcntop 12861 |
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