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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 3266 |
. 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 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-11 1555 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2216 |
| This theorem depends on definitions: df-bi 117 df-nf 1510 df-sb 1812 df-clab 2221 df-cleq 2227 df-clel 2230 df-in 3220 df-ss 3227 |
| This theorem is referenced by: sseq12d 3273 sseqtrd 3280 exmidsssn 4320 exmidsssnc 4321 onsucsssucexmid 4654 sbcrel 4841 funimass2 5439 fnco 5471 fnssresb 5475 fnimaeq0 5485 foimacnv 5637 fvelimab 5738 ssimaexg 5744 fvmptss2 5757 rdgss 6627 papeq2 7574 tapeq2 7583 fzowrddc 11364 swrdnd 11376 swrd0g 11377 summodclem2 12093 summodc 12094 zsumdc 12095 fsum3cvg3 12107 prodmodclem2 12288 prodmodc 12289 zproddc 12290 ennnfoneleminc 13246 tgval 13559 releqgg 13973 eqgex 13974 eqgfval 13975 prdsval 14115 opprsubgg 14328 unitsubm 14364 subrngpropd 14462 subrgsubm 14480 issubrg3 14493 subrgpropd 14499 lsslss 14655 lsspropdg 14705 islidlm 14753 rspcl 14765 rspssid 14766 isbasisg 15035 tgss3 15069 restbasg 15159 tgrest 15160 restopn2 15174 cnpnei 15210 cnptopresti 15229 txbas 15249 elmopn 15437 neibl 15482 dvfgg 15679 incistruhgr 16211 edgssv2en 16320 wksfval 16443 |
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