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| Mirrors > Home > ILE Home > Th. List > sseq2d | Unicode version | ||
| Description: An equality deduction for the subclass relationship. (Contributed by NM, 14-Aug-1994.) |
| Ref | Expression |
|---|---|
| sseq1d.1 |
|
| Ref | Expression |
|---|---|
| sseq2d |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sseq1d.1 |
. 2
| |
| 2 | sseq2 3248 |
. 2
| |
| 3 | 1, 2 | syl 14 |
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-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-11 1552 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-ext 2211 |
| This theorem depends on definitions: df-bi 117 df-nf 1507 df-sb 1809 df-clab 2216 df-cleq 2222 df-clel 2225 df-in 3203 df-ss 3210 |
| This theorem is referenced by: sseq12d 3255 sseqtrd 3262 exmidsssn 4286 exmidsssnc 4287 onsucsssucexmid 4619 sbcrel 4805 funimass2 5399 fnco 5431 fnssresb 5435 fnimaeq0 5445 foimacnv 5592 fvelimab 5692 ssimaexg 5698 fvmptss2 5711 rdgss 6535 tapeq2 7450 fzowrddc 11194 swrdnd 11206 swrd0g 11207 summodclem2 11908 summodc 11909 zsumdc 11910 fsum3cvg3 11922 prodmodclem2 12103 prodmodc 12104 zproddc 12105 ennnfoneleminc 12997 tgval 13310 prdsval 13321 releqgg 13772 eqgex 13773 eqgfval 13774 opprsubgg 14062 unitsubm 14098 subrngpropd 14195 subrgsubm 14213 issubrg3 14226 subrgpropd 14232 lsslss 14360 lsspropdg 14410 islidlm 14458 rspcl 14470 rspssid 14471 isbasisg 14733 tgss3 14767 restbasg 14857 tgrest 14858 restopn2 14872 cnpnei 14908 cnptopresti 14927 txbas 14947 elmopn 15135 neibl 15180 dvfgg 15377 incistruhgr 15905 edgssv2en 16012 wksfval 16063 |
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