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| Description: An equality deduction for the subclass relationship. |
| Ref | Expression |
|---|---|
| sseq1d.1 |
|
| Ref | Expression |
|---|---|
| sseq1d |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sseq1d.1 |
. 2
| |
| 2 | sseq1 2082 |
. 2
| |
| 3 | 1, 2 | syl 10 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: sseq12d 2090 eqsstrd 2095 snssg 2463 prssg 2472 ssiun2s 2594 treq 2686 ordunel 3084 dmxpss 3473 rnxpss 3474 funimass1 3572 feq1 3620 fvimacnvi 3804 fvimacnvALT 3809 oaordi 4180 oaword2 4187 oawordeulem 4188 omwordri 4203 omword1 4204 oewordri 4219 oeordsuc 4221 ereq 4267 map0e 4342 sbthlem5 4451 fodomr 4483 inf3lema 4609 inf3lemd 4612 trcl 4645 r1val1 4658 rankr1 4674 rankxplim 4712 scottex 4716 scott0 4717 scottexs 4718 scott0s 4719 karden 4726 cardaleph 4885 cfub 4908 cflecard 4912 cfle 4913 peano5uzt 6204 infmap2lem2 7580 iscnp 7760 cnsscnp 7772 blss 7853 ssblex 7856 opnin 7869 blnei 7879 metcnp 7887 tgioolem 7914 bcthlem9 8007 bcthlem15 8013 bcthlem18 8016 bcthlem28 8026 bcth 8032 subgrnss 8119 sspval 8382 isssp 8383 ocsh 9156 hsupval2t 9300 chsupid 9311 chsupsn 9312 shlubt 9354 shmod 9363 chsscon3t 9423 chsscon2t 9425 spansncv 9597 pj3 10136 mdslmd1lem3 10254 mdslmd1lem4 10255 mdsymlem5 10334 sumdmdlem2 10346 dmdbr5at 10349 dmdbr6at 10350 dmdbr7at 10351 sfvlim 10605 sfvlimOLD 10606 plimfilOLD 10609 iintlem2 10633 isalg 10653 algi 10660 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 962 ax-gen 963 ax-8 964 ax-10 966 ax-12 968 ax-17 971 ax-4 973 ax-5o 975 ax-6o 978 ax-9o 1123 ax-10o 1140 ax-16 1210 ax-11o 1218 ax-ext 1459 |
| This theorem depends on definitions: df-bi 147 df-an 225 df-ex 981 df-sb 1172 df-clab 1464 df-cleq 1469 df-clel 1472 df-in 2051 df-ss 2053 |