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| Description: Membership relationships follow from a subclass relationship. |
| Ref | Expression |
|---|---|
| ssel |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | dfss2 2048 |
. . . . . 6
| |
| 2 | 1 | biimp 151 |
. . . . 5
|
| 3 | 2 | 19.21bi 1056 |
. . . 4
|
| 4 | 3 | anim2d 559 |
. . 3
|
| 5 | 4 | 19.22dv 1285 |
. 2
|
| 6 | df-clel 1465 |
. 2
| |
| 7 | df-clel 1465 |
. 2
| |
| 8 | 5, 6, 7 | 3imtr4g 551 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: ssel2 2054 sseli 2055 sseld 2057 ssralv 2104 ssrexv 2105 ssconb 2160 sscon 2161 ssdif 2162 reuss2 2265 reupick 2269 reldisj 2303 prss 2462 sssn 2464 tpss 2467 uniss 2511 iunss1 2564 ss2iun 2567 ssiun 2582 sspwb 2745 unipw 2746 pwssun 2816 poss 2832 soss 2843 reuuniss 2879 mouniss 2880 reuuniss2 2881 elpwunsn 2902 onfr 2976 ssorduni 2983 onint 2996 oninton 3002 oneqmini 3007 sucssel 3060 onssneli 3091 onssneli2 3092 snsn0non 3115 ssnlim 3157 brrelex 3197 weinxp 3223 ssrel 3237 ssxp 3246 cnvss 3280 dmss 3299 elreldm 3327 relssres 3376 iss 3381 resopab2 3382 cotr 3420 cnvsym 3421 ssrnres 3467 cores 3485 funss 3520 funopg 3533 funssres 3538 fununi 3549 dfimafn 3746 funimass4 3748 fvelimab 3750 funimass3 3791 dff2 3802 dff3 3803 rnssopab 3810 fopabcos 3818 funfvima2 3838 funfvima3 3839 isomin 3884 isofrlem 3886 tfrlem1 3896 tfrlem13 3908 tz7.48lem 3940 tz7.49 3944 omsmolem 4240 omsmo 4241 ss2ixp 4338 onomeneq 4498 unblem1 4517 unblem3 4519 fiint 4534 inf3lem2 4586 r1tr 4626 tz9.13 4635 rankr1lem 4645 rankel 4652 rankval3 4653 bndrank 4654 rankpw 4656 cardlim 4823 carduni 4830 cfub 4880 suplem1pr 5133 supsr 5203 suprelem 5231 pre-axsup 5263 lbreu 5992 lbinfm 5995 sup2 5998 sup3 5999 infm3 6001 infmsup 6015 infmrcl 6016 xrsupsslem 6023 xrinfmsslem 6024 supxrre 6030 supxrpnf 6035 supxrunb1 6036 supxrunb2 6037 uzwo4OLD 6158 uzwo5OLD 6159 iccsupr 6331 uzwo 6387 uzwoOLD 6388 infxpidmlem7 7501 infmap2lem1 7521 tgval3t 7567 basgen2t 7581 subbas2 7587 ntrss2 7632 elcls2 7647 cncnplem3 7715 metreslem 7762 opnin 7809 cncfmet 7844 metelcls 7900 ubthlem10 8469 ocsh 9072 occont 9076 ococss 9082 shorth 9084 shless 9262 spansnss2t 9415 h1datom 9421 pjss2 9542 pjssm 9543 pjorthco 10008 pj3s 10045 cnrsfin 10396 cmpmorp 10556 |
| 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 |