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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 3261 |
. 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 2214 |
| This theorem depends on definitions: df-bi 117 df-nf 1510 df-sb 1812 df-clab 2219 df-cleq 2225 df-clel 2228 df-in 3217 df-ss 3224 |
| This theorem is referenced by: sseq12d 3269 eqsstrd 3274 snssgOLD 3830 ssiun2s 4035 treq 4214 onsucsssucexmid 4649 funimass1 5433 feq1 5491 sbcfg 5507 fvmptssdm 5762 fvimacnvi 5792 nnsucsssuc 6725 ereq1 6774 elpm2r 6900 fipwssg 7266 nnnninf 7417 ctssexmid 7441 rspssp 14642 iscnp 15064 iscnp4 15083 cnntr 15090 cnconst2 15098 cnptopresti 15103 cnptoprest 15104 txbas 15123 txcnp 15136 txdis 15142 txdis1cn 15143 blssps 15292 blss 15293 ssblex 15296 blin2 15297 metss2 15363 metrest 15371 metcnp3 15376 cnopnap 15476 limccl 15524 ellimc3apf 15525 ausgrumgrien 16165 ausgrusgrien 16166 eupth2lem3lem4fi 16468 |
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