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| Description: Any class is a subclass of itself. Exercise 10 of [TakeutiZaring] p. 18. (The proof was shortened by Andrew Salmon, 14-Jun-2011.) |
| Ref | Expression |
|---|---|
| ssid |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | id 73 |
. 2
| |
| 2 | 1 | ssriv 2621 |
1
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| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: eqimssOLD 2666 eqimssi 2668 eqimss2i 2669 nssinpssOLD 2825 nsspssun 2826 inv1 2898 disjpss 2924 difid 2942 pwid 3042 elssuni 3206 unimax 3212 intmin 3237 intminOLD 3238 ssbri 3379 axpweq 3480 ordunidif 3712 iunpw 3858 onsucuni 3907 xpss1 4091 xpss2 4092 ssres2OLD 4241 residm 4246 resdm 4249 ssrnres 4354 dffn3 4570 fssxpOLD 4576 funssxp 4577 fimacnv 4783 tfrlem1 5119 tz7.48-2 5166 abianfp 5171 oaordi 5227 omwordi 5250 omass 5259 xpdom3 5504 unifi 5648 pwfi 5661 ordtypelem4 5687 sucprcreg 5703 noinfep 5747 scott0 5847 htalem 5857 zorn2lem4 5953 cflem 6053 cflecard 6060 axresscnOLD 6421 expcl 7824 clmi1i 8346 clm4a 8350 clmi2a 8351 climconsti 8354 climunii 8358 climshfti 8364 climresi 8365 climuz0i 8368 climmullem8 8387 serzf0i 8429 isumclim4 8462 negfcncfi 8531 abscncflem 8536 cjcncf 8540 mulc1cncf 8541 isupivthi 8552 dsupivthlem 8553 efcn 8688 reeff1olem1 8689 xpnnen 8768 alephexp2 8855 topopn 8871 fiinbas 8885 topbas 8897 subbas 8914 retopbas 8925 topcld 8951 clstop 8976 ntrtop 8977 opnneissb 9004 opnssneib 9005 opnneiid 9013 islp2 9023 ssblex 9133 opnm 9137 blssopn 9144 blnei 9156 cncfmet1 9184 lmbrf 9208 iscauf 9217 iscau4 9218 iscau5 9219 iscaunns 9222 lmsslem 9230 caussi 9232 lmclimnn 9242 opr1scn 9258 grprlidrid 9337 grpidinv2 9344 grpinv 9353 abscncfALT 9683 sspid 9723 ssps 9728 pilem1 10020 efghgrpilem 10073 efifolem1 10076 grothpw 10134 grothomex 10136 axgroth6 10137 axgroth3 10138 emfin 10165 setwoe 10170 filfbas 10276 fsubbas 10281 fbssfg 10285 fgfil 10290 extbas2 10292 h2hcau 10481 h2hlm 10482 helch 10749 hhssnv 10767 hhsssh 10772 occl 10815 omlsi 10879 shintcl 10927 chintcl 10929 shlesb1i 10992 chm1i 11012 chlejb1i 11032 chm0i 11046 chabs1 11072 chabs2 11073 spanun 11101 cmidi 11186 pjidmcoi 11749 hst0 11805 csmdsymi 11906 sumdmdlem2 11991 dmdbr5ati 11994 mdcompli 12001 dmdcompli 12002 bnj1253 13470 bnj1283 13476 residcp 14392 set2elt 14408 prl2 14514 inpc 14619 inposet 14620 dominc 14622 rninc 14623 domncnt 14624 ranncnt 14625 dfps2 14634 toplat 14638 osneisi 14875 fgsb 14921 efilcp 14922 fgsb2 14925 efilcp2 14926 limfilnei 14943 clindistop 14962 0alg 15103 catsbc 15197 taralt 15211 inacint 15221 tareltsuc 15275 fictblem 15370 ordtypelem4OLD 15378 cncls 15419 hscptsscld 15434 alexsublem4 15440 retopcon 15452 ivthALT 15454 fness 15491 ssref 15492 fneref 15493 refref 15494 refssfne 15504 comppfsc 15517 neibastop2lem4 15522 neibastop2 15523 neibastop3 15524 fnemeet1 15528 fnemeet2 15529 fnejoin1 15530 opnfbas 15557 supfil 15560 filssufil 15571 ufileu 15573 ufinffr 15578 ufilen 15579 neiplim 15586 cnpfillim 15589 imaelfm 15591 rnelfm 15593 fmfnfmlem4 15597 fcluscf 15612 flimfnfcls 15615 filnetlem1 15640 filnetlem4 15643 filnetlem5 15644 difxp 15690 fimax 15746 welb 15759 frfi 15771 oprpiece1res1 15880 oprpiece1res2 15881 addccncf 15883 sub1cncf 15885 sub2cncf 15886 cnimass 15888 cncfres 15895 heiborlem9 15963 heiborlem13 15967 heiborlem33 15987 heiborlem41 15995 phtpycom 16050 phtpycolem3 16053 phtpycolem4 16054 reparphtlem2 16064 pcocn 16076 pcohtpylem3 16082 pcopt 16084 pcoass 16085 pcorevlem 16086 rngidl 16172 p0le 16845 ple1 16846 grpidinv2NEW 17119 grpinvNEW 17128 atpsub 17233 pol1 17323 1psubcl 17353 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 1304 ax-gen 1305 ax-8 1306 ax-10 1308 ax-12 1310 ax-17 1317 ax-4 1319 ax-5o 1321 ax-6o 1324 ax-9o 1481 ax-10o 1500 ax-16 1580 ax-11o 1588 ax-ext 1865 |
| This theorem depends on definitions: df-bi 164 df-an 242 df-ex 1327 df-sb 1536 df-clab 1872 df-cleq 1877 df-clel 1880 df-in 2603 df-ss 2605 |