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| Mirrors > Home > ILE Home > Th. List > sseq1d | Unicode version | ||
| Description: An equality deduction for the subclass relationship. (Contributed by NM, 14-Aug-1994.) |
| Ref | Expression |
|---|---|
| sseq1d.1 |
|
| Ref | Expression |
|---|---|
| sseq1d |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sseq1d.1 |
. 2
| |
| 2 | sseq1 3247 |
. 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 eqsstrd 3260 snssgOLD 3804 ssiun2s 4009 treq 4188 onsucsssucexmid 4619 funimass1 5398 feq1 5456 sbcfg 5472 fvmptssdm 5721 fvimacnvi 5751 nnsucsssuc 6646 ereq1 6695 elpm2r 6821 fipwssg 7157 nnnninf 7304 ctssexmid 7328 rspssp 14473 iscnp 14888 iscnp4 14907 cnntr 14914 cnconst2 14922 cnptopresti 14927 cnptoprest 14928 txbas 14947 txcnp 14960 txdis 14966 txdis1cn 14967 blssps 15116 blss 15117 ssblex 15120 blin2 15121 metss2 15187 metrest 15195 metcnp3 15200 cnopnap 15300 limccl 15348 ellimc3apf 15349 ausgrumgrien 15983 ausgrusgrien 15984 |
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