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| Description: Equality theorem for subclasses. |
| Ref | Expression |
|---|---|
| sseq1 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sstr2 2071 |
. . . 4
| |
| 2 | sstr2 2071 |
. . . 4
| |
| 3 | 1, 2 | anim12i 333 |
. . 3
|
| 4 | eqss 2077 |
. . 3
| |
| 5 | dfbi2 514 |
. . 3
| |
| 6 | 3, 4, 5 | 3imtr4 219 |
. 2
|
| 7 | 6 | eqcoms 1478 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: sseq12 2084 sseq1i 2085 sseq1d 2088 psseq1 2135 elpw 2404 elpwg 2405 pwpw0 2469 sssn 2473 sspr 2475 prsspw 2480 pwsnALT 2501 unimax 2532 trss 2689 elssabg 2726 intabs 2733 nnullss 2768 exss 2769 rabsnt 2894 fri 2918 frc 2920 onssmin 3008 releq 3243 iss 3397 fununi 3563 funcnvuni 3564 fssxp 3637 ffoss 3711 ssimaex 3768 isofrlem 3901 f1oweALT 3906 tfrlem1 3911 oawordeu 4189 elpm 4336 pw2en 4446 sbthlem2 4448 sbth 4457 php 4513 unbnn2 4545 fiint 4559 fiintOLD 4560 abfii3OLD 4563 abfii4OLD 4564 sucprcreg 4600 unbnnt 4639 tz9.1 4646 setind 4648 rankr1 4674 rankr1id 4697 scott0 4717 bnd2 4724 aceq3lem 4732 ac6lem 4754 zorn2lem7 4794 oncard 4829 carduni 4858 cardaleph 4885 cflem 4905 cflim 4909 cflecard 4912 cfeq0 4914 cfsuc 4915 infxpidmlem2 7553 infxpidmlem3 7554 infxpidmlem7 7558 infxpidmlem8 7559 infmap2lem1 7579 infmap2 7581 uniopnt 7598 eltg2t 7619 tgval3t 7625 topbast 7627 subbasOLD 7644 subbas2OLD 7645 subtop 7646 fctopOLD 7650 cctop 7652 retopbas 7655 iscld 7669 clsval 7677 clsval2 7685 neival 7717 isnei 7718 neiint 7719 neips 7727 opnneissb 7728 opnssneib 7729 innei 7736 islp2 7747 dnsconst 7788 blssex 7854 opnm 7860 blssopn 7867 opnin 7869 neibl 7877 lmbr 7928 bcthlem7 8005 issubg 8116 axgroth3 8779 axgroth4 8780 grothinf 8781 sh 9078 hhsssh 9139 occlt 9182 omls 9246 pjomlt 9269 shintclt 9294 chintclt 9296 spanvalt 9299 shlubt 9354 chnlen0 9368 chsscon3t 9423 chlejb1t 9435 chnlet 9437 spanunt 9468 h1datomt 9505 cmbr4 9544 pjoml2t 9554 pjoml3t 9555 lecmt 9560 osumlem8 9585 osumt 9588 osumcor2 9590 spansncvt 9598 pjcjt2 9637 pjopytht 9665 pjss1co 10091 hstel2t 10146 stjt 10162 stcltr1 10201 mdit 10222 mdbr3 10224 mdbr4 10225 dmdbrt 10226 dmdmdt 10227 dmdbr5 10235 mdsl1 10248 mdslmd1lem3 10254 mdslmd1lem4 10255 mdslmd1 10256 csmdsym 10261 atss 10273 atom1d 10280 superpos 10281 chcv1t 10282 shatomic 10285 shatomistic 10288 hatomistic 10289 chrelat2t 10297 atcvatlem 10312 irred 10321 atcvat4 10324 mdsymlem2 10331 mdsymlem3 10332 mdsymlem6 10335 dmdbr6at 10350 dmdbr7at 10351 infi1 10447 infi1OLD 10448 fine 10449 fineOLD 10450 fiiu 10453 fiiuOLD 10454 ficli 10472 ficliOLD 10473 fiv 10482 fivOLD 10483 fiiu2 10488 fiiu2OLD 10489 iseuctopg 10502 qusp 10555 fillsb 10560 fipfil2 10564 fipfil2OLD 10565 oefil2 10567 fgsb 10570 fgsbOLD 10571 efilcp 10572 efilcpOLD 10573 filint2 10574 filint2OLD 10575 infi 10578 infiOLD 10579 fgsb2 10580 efilcp2 10581 efilcp2OLD 10582 cnfilca 10583 cnfilcaOLD 10584 rcfpfillem3 10589 rcfpfillem3OLD 10590 rcfpfillem4 10591 rcfpfillem4OLD 10592 rcfpfillem5 10593 rcfpfillem5OLD 10594 rcfpfillem6 10595 rcfpfillem6OLD 10596 rcfpfil 10597 rcfpfilOLD 10598 limfillem2OLD 10608 ishgrag 10769 hgralem 10770 ispgrag 10779 |
| 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 |