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| Description: Equality of a class variable and a class abstraction (inference rule). |
| Ref | Expression |
|---|---|
| abeqi.1 |
|
| Ref | Expression |
|---|---|
| abeq2i |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | abeqi.1 |
. . 3
| |
| 2 | 1 | eleq2i 1961 |
. 2
|
| 3 | abid 1873 |
. 2
| |
| 4 | 2, 3 | bitri 190 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: rabid 2253 visset 2295 csbcog 2547 noel 2879 elpw 3037 pwss 3043 elsn 3058 pw0OLD 3133 snsspw 3149 elopab 3559 iunpw 3858 funcnv3 4476 zfrep6 4545 fv2OLD 4677 tz6.12-1 4693 fopab2 4796 tfrlem4 5122 tfrlem5 5123 tfrlem8 5126 tfrlem9 5127 mapsnen 5488 sbthlem1 5510 ac6lem 5916 1pr 6269 1idpr 6285 ltexprlem1 6294 ltexprlem2 6295 ltexprlem3 6296 ltexprlem4 6297 ltexprlem6 6299 ltexprlem7 6300 reclem1pr 6308 reclem2pr 6309 reclem3pr 6310 reclem4pr 6311 suppsrlem 6373 suppsr3 6376 suprelem 6411 isbasis2g 8881 grothpw 10134 avril1 10142 fipreima 10175 chsscmi 10745 chcmhi 10746 bnj1436 13130 bnj902 13326 bnj894 13327 bnj916 13332 bnj983 13357 bnj1083 13408 bnj1244 13461 bnj1245 13463 bnj1255 13466 bnj1258 13468 bnj1371 13505 bnj1398 13515 setinds 13844 wfrlem2 13958 wfrlem3 13959 wfrlem4 13960 wfrlem9 13965 wfrlem12 13968 fopab2g 14485 eroprlem 15732 eropreu 15733 fipreimaOLD 15756 strdif 16719 psubspset 17225 psubclset 17346 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-gen 1305 ax-12 1310 ax-17 1317 ax-4 1319 ax-5o 1321 ax-6o 1324 ax-9o 1481 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 |