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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 3251 |
. 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 2213 |
| This theorem depends on definitions: df-bi 117 df-nf 1510 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-in 3207 df-ss 3214 |
| This theorem is referenced by: sseq12d 3259 eqsstrd 3264 snssgOLD 3814 ssiun2s 4019 treq 4198 onsucsssucexmid 4631 funimass1 5414 feq1 5472 sbcfg 5488 fvmptssdm 5740 fvimacnvi 5770 nnsucsssuc 6703 ereq1 6752 elpm2r 6878 fipwssg 7221 nnnninf 7368 ctssexmid 7392 rspssp 14573 iscnp 14993 iscnp4 15012 cnntr 15019 cnconst2 15027 cnptopresti 15032 cnptoprest 15033 txbas 15052 txcnp 15065 txdis 15071 txdis1cn 15072 blssps 15221 blss 15222 ssblex 15225 blin2 15226 metss2 15292 metrest 15300 metcnp3 15305 cnopnap 15405 limccl 15453 ellimc3apf 15454 ausgrumgrien 16094 ausgrusgrien 16095 eupth2lem3lem4fi 16397 |
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