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Mirrors > Home > ILE Home > Th. List > dfss3 | Unicode version |
Description: Alternate definition of subclass relationship. (Contributed by NM, 14-Oct-1999.) |
Ref | Expression |
---|---|
dfss3 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | dfss2 3091 |
. 2
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2 | df-ral 2422 |
. 2
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3 | 1, 2 | bitr4i 186 |
1
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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 105 ax-ia2 106 ax-ia3 107 ax-5 1424 ax-7 1425 ax-gen 1426 ax-ie1 1470 ax-ie2 1471 ax-8 1483 ax-11 1485 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-nf 1438 df-sb 1737 df-clab 2127 df-cleq 2133 df-clel 2136 df-ral 2422 df-in 3082 df-ss 3089 |
This theorem is referenced by: ssrab 3180 eqsnm 3690 uni0b 3769 uni0c 3770 ssint 3795 ssiinf 3870 sspwuni 3905 dftr3 4038 tfis 4505 rninxp 4990 fnres 5247 eqfnfv3 5528 funimass3 5544 ffvresb 5591 tfrlemibxssdm 6232 tfr1onlembxssdm 6248 tfrcllembxssdm 6261 suplocsr 7641 isbasis2g 12251 tgval2 12259 eltg2b 12262 tgss2 12287 basgen2 12289 bastop1 12291 unicld 12324 neipsm 12362 ssidcn 12418 bdss 13233 |
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