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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 3272 |
. 2
| |
| 3 | 1, 2 | syl 14 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-11 1559 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 |
| This proof depends on definitions: df-bi 117 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-in 3226 df-ss 3233 |
| This theorem is used by: sseq12d 3279 sseqtrd 3286 exmidsssn 4341 exmidsssnc 4342 onsucsssucexmid 4676 sbcrel 4863 funimass2 5462 fnco 5494 fnssresb 5498 fnimaeq0 5508 foimacnv 5660 fvelimab 5762 ssimaexg 5768 fvmptss2 5783 rdgss 6659 isfsuppfi 7296 funisfsuppdc 7298 papeq2 7616 tapeq2 7625 fzowrddc 11440 swrdnd 11452 swrd0g 11453 summodclem2 12173 summodc 12174 zsumdc 12175 fsum3cvg3 12187 prodmodclem2 12368 prodmodc 12369 zproddc 12370 ennnfoneleminc 13359 tgval 13674 releqgg 14081 eqgex 14082 eqgfval 14083 sscntz 14157 resscntz 14165 prdsval 14279 opprsubgg 14498 unitsubm 14534 subrngpropd 14632 subrgsubm 14650 issubrg3 14663 subrgpropd 14669 lsslss 14826 lsspropdg 14876 islidlm 14924 rspcl 14936 rspssid 14937 mplsubgfilemcl 15232 mplsubgfileminv 15233 isbasisg 15287 tgss3 15321 restbasg 15411 tgrest 15412 restopn2 15426 cnpnei 15462 cnptopresti 15481 txbas 15501 elmopn 15689 neibl 15734 dvfgg 15931 incistruhgr 16553 edgssv2en 16662 wksfval 16785 |
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