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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 2072 |
. 2
| |
| 3 | 1, 2 | syl 10 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: sseq12d 2080 eqsstrd 2085 snssg 2454 prssg 2463 ssiun2s 2584 treq 2676 ordunel 3074 dmxpss 3459 rnxpss 3460 funimass1 3558 feq1 3606 fvimacnvi 3789 fvimacnvALT 3794 oaordi 4164 oaword2 4171 oawordeulem 4172 omwordri 4187 omword1 4188 oewordri 4203 oeordsuc 4205 ereq 4251 map0e 4326 sbthlem5 4431 fodomr 4463 inf3lema 4581 inf3lemd 4584 trcl 4617 r1val1 4630 rankr1 4646 rankxplim 4684 scottex 4688 scott0 4689 scottexs 4690 scott0s 4691 karden 4698 cardaleph 4857 cfub 4880 cflecard 4884 cfle 4885 peano5uzt 6152 infmap2lem2 7522 iscnp 7700 cnsscnp 7711 blss 7793 ssblex 7796 opnin 7809 blnei 7818 metcnp 7826 tgioolem 7853 bcthlem9 7941 bcthlem15 7947 bcthlem18 7950 bcthlem28 7960 bcth 7966 subgrnss 8056 sspval 8316 isssp 8317 ocsh 9072 hsupval2t 9215 chsupid 9226 chsupsn 9227 shlubt 9269 shmod 9278 chsscon3t 9338 chsscon2t 9340 spansncv 9514 pj3 10046 mdslmd1lem3 10162 mdslmd1lem4 10163 mdsymlem5 10242 sumdmdlem2 10253 dmdbr5at 10255 dmdbr6at 10256 iintlem2 10477 isalg 10497 algi 10504 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 959 ax-gen 960 ax-8 961 ax-10 963 ax-12 965 ax-17 968 ax-4 970 ax-5o 972 ax-6o 975 ax-9o 1119 ax-10o 1136 ax-16 1206 ax-11o 1213 ax-ext 1452 |
| This theorem depends on definitions: df-bi 147 df-an 225 df-ex 978 df-sb 1168 df-clab 1457 df-cleq 1462 df-clel 1465 df-in 2041 df-ss 2043 |