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| Description: Equality theorem for subclasses. |
| Ref | Expression |
|---|---|
| sseq1 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sstr2 2067 |
. . . 4
| |
| 2 | sstr2 2067 |
. . . 4
| |
| 3 | 1, 2 | anim12i 333 |
. . 3
|
| 4 | eqss 2073 |
. . 3
| |
| 5 | bi 514 |
. . 3
| |
| 6 | 3, 4, 5 | 3imtr4 219 |
. 2
|
| 7 | 6 | eqcoms 1475 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: sseq12 2080 sseq1i 2081 sseq1d 2084 psseq1 2131 elpw 2400 elpwg 2401 pwpw0 2465 sssn 2469 sspr 2471 prsspw 2476 unimax 2527 trss 2684 elssabg 2721 intabs 2728 nnullss 2763 exss 2764 rabsnt 2889 fri 2913 frc 2915 onssmin 3003 releq 3238 iss 3389 fununi 3555 funcnvuni 3556 fssxp 3628 ffoss 3702 ssimaex 3759 isofrlem 3892 f1oweALT 3897 tfrlem1 3902 oawordeu 4179 elpm 4326 pw2en 4432 sbthlem2 4434 sbth 4443 php 4499 unbnn2 4528 fiint 4540 abfii3 4543 abfii4 4544 sucprcreg 4580 unbnnt 4619 tz9.1 4626 setind 4628 rankr1 4654 rankr1id 4677 scott0 4697 bnd2 4704 aceq3lem 4712 ac6lem 4734 zorn2lem7 4774 oncard 4809 carduni 4838 cardaleph 4865 cflem 4885 cflim 4889 cflecard 4892 cfeq0 4894 cfsuc 4895 infxpidmlem2 7504 infxpidmlem3 7505 infxpidmlem7 7509 infxpidmlem8 7510 infmap2lem1 7529 infmap2 7531 uniopnt 7548 eltg2t 7569 tgval3t 7575 topbast 7577 subbas 7594 subbas2 7595 subtop 7596 fctop 7600 cctop 7602 retopbas 7605 iscld 7619 clsval 7627 clsval2 7635 neival 7667 isnei 7668 neiint 7669 neips 7677 opnneissb 7678 opnssneib 7679 innei 7686 islp2 7697 dnsconst 7738 blssex 7806 opnm 7812 blssopn 7819 opnin 7821 neibl 7829 lmbr 7880 bcthlem7 7955 issubg 8068 axgroth3 8718 axgroth4 8719 grothinf 8720 sh 9017 hhsssh 9078 occlt 9121 omls 9184 pjomlt 9207 shintclt 9232 chintclt 9234 spanvalt 9237 shlubt 9292 chnlen0 9306 chsscon3t 9361 chlejb1t 9373 chnlet 9375 spanunt 9406 h1datomt 9445 cmbr4 9484 pjoml2t 9494 pjoml3t 9495 lecmt 9500 osumlem8 9525 osumt 9528 osumcor2 9530 spansncvt 9538 pjcjt2 9577 pjopytht 9605 pjss1co 10029 hstel2t 10084 stjt 10100 stcltr1 10139 mdit 10160 mdbr3 10162 mdbr4 10163 dmdbrt 10164 dmdmdt 10165 mdsl1 10185 mdslmd1lem3 10191 mdslmd1lem4 10192 mdslmd1 10193 csmdsym 10198 atss 10210 atom1d 10217 superpos 10218 chcv1t 10219 shatomic 10222 shatomistic 10225 hatomistic 10226 chrelat2t 10234 atcvatlem 10249 irred 10258 atcvat4 10261 mdsymlem2 10268 mdsymlem3 10269 mdsymlem6 10272 dmdbr6at 10285 infi1 10383 fine 10384 fiiu 10386 ficli 10404 fiv 10410 fiiu2 10413 iseuctopg 10425 qusp 10466 fillsb 10471 fipfil2 10475 oefil2 10477 fgsb 10480 efilcp 10481 filint2 10482 infi 10484 fgsb2 10485 efilcp2 10486 cnfilca 10487 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 |