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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 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 3204 df-ss 3211 |
| This theorem is referenced by: sseq12d 3256 eqsstrd 3261 snssgOLD 3807 ssiun2s 4012 treq 4191 onsucsssucexmid 4623 funimass1 5404 feq1 5462 sbcfg 5478 fvmptssdm 5727 fvimacnvi 5757 nnsucsssuc 6655 ereq1 6704 elpm2r 6830 fipwssg 7169 nnnninf 7316 ctssexmid 7340 rspssp 14498 iscnp 14913 iscnp4 14932 cnntr 14939 cnconst2 14947 cnptopresti 14952 cnptoprest 14953 txbas 14972 txcnp 14985 txdis 14991 txdis1cn 14992 blssps 15141 blss 15142 ssblex 15145 blin2 15146 metss2 15212 metrest 15220 metcnp3 15225 cnopnap 15325 limccl 15373 ellimc3apf 15374 ausgrumgrien 16009 ausgrusgrien 16010 |
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