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| Description: An equality deduction for the subclass relationship. |
| Ref | Expression |
|---|---|
| sseq1d.1 |
|
| Ref | Expression |
|---|---|
| sseq2d |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sseq1d.1 |
. 2
| |
| 2 | sseq2 2079 |
. 2
| |
| 3 | 1, 2 | syl 10 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: sseq12d 2086 sseqtrd 2093 funimass2 3565 fnco 3587 fnssresb 3591 fco 3627 f1ores 3694 tz6.12-2 3730 ssimaexg 3760 isofrlem 3892 oaordi 4170 oawordeulem 4178 oaass 4185 odi 4200 omass 4201 oen0 4203 oelim2 4212 pmvalg 4321 pw2en 4432 sbthlem2 4434 sbth 4443 ssenen 4490 phplem2 4495 pssnn 4519 ssfi 4521 fiint 4540 fodomfi 4546 trcl 4625 r1tr 4634 rankeq0 4676 rankr1id 4677 rankr1b 4679 kmlem5 4749 alephordlem2 4853 alephordi 4854 alephgeom 4862 cardaleph 4865 cardalephex 4866 cflim 4889 isbasisg 7561 tgvalt 7566 cldval 7616 ntrfval 7617 clsfval 7618 neifval 7664 neiint 7669 lpfval 7692 cncnplem4 7727 opnfval 7809 neibl 7829 lpbl 7832 metcnp 7839 lmfval 7877 caufval 7878 metelcls 7916 metcld 7917 cmsss 7947 bcthlem15 7963 bcth 7982 sspval 8329 hsupunss 9251 spanss2 9252 orthin 9308 chssoct 9357 chsscon3t 9361 chsscon1t 9362 h1datomt 9445 pjoml6 9472 osumlem8 9525 osumt 9528 spansncvt 9538 pjcjt2 9577 pjopytht 9605 hstel2t 10084 hstlet 10095 stjt 10100 mdslmd1lem1 10189 atordt 10252 irredlem4 10257 atcvat4 10261 mdsymlem2 10268 mdsymlem3 10269 mdsymlem8 10274 mdsym 10275 ghomfo 10325 abfi2 10414 oefil2 10477 fgsb 10480 fgsb2 10485 ishgrag 10641 hgralem 10642 ispgrag 10651 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 960 ax-gen 961 ax-8 962 ax-10 964 ax-12 966 ax-17 969 ax-4 971 ax-5o 973 ax-6o 976 ax-9o 1121 ax-10o 1138 ax-16 1208 ax-11o 1216 ax-ext 1457 |
| This theorem depends on definitions: df-bi 147 df-an 225 df-ex 979 df-sb 1170 df-clab 1462 df-cleq 1467 df-clel 1470 df-in 2047 df-ss 2049 |