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| Description: Class identity law with antecedent. |
| Ref | Expression |
|---|---|
| eqidd |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqid 1884 |
. 2
| |
| 2 | 1 | a1i 8 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: 1st2val 5038 2nd2val 5039 iotanul 5098 riotabidv 5562 hartoglem 5692 fsumconst 8298 climabs0i 8373 acdc3lem 8754 acdclem 8763 acdcALT 8765 txuni 8935 minveclem9 9898 oprabco 10159 upxp 10225 uptx 10226 txcn 10227 txcnopab 10228 subtopmet 10256 limfil 10297 iscom2 10396 opsqrlem4 11714 alginv 13743 algfx 13748 elno2 14005 eqfnung2 14459 cbicplem 14508 islatalg 14531 prodeq1 14658 fprodp1s1 14683 fincmpzer 14711 isppm 14715 fprodneg 14741 fprodsub 14742 vecval1b 14794 vecval3b 14795 vri 14834 idtrgrp 14978 cnvtr 15016 imonclem 15162 iepiclem 15172 cinvlem2 15177 partarelt2 15274 elfiun 15369 inficlALT 15372 hartoglemOLD 15383 subntr 15425 cnsubsp2 15427 hscptsscld 15434 connsub 15443 rnelfmlem 15592 rnelfm 15593 filclus 15605 unirep 15664 eqfnoprv2 15704 fnopabco 15711 upixp 15729 inficl 15757 seq1p1g 15805 seqzp1g 15807 sdclem1 15809 fdc 15812 lmclim2 15850 txsubsp 15912 totbndss 15937 totbndbnd 15944 heiborlem34 15988 bfplem3 16000 rrnmet 16016 rrncms 16019 rrntotbndlem1 16020 phtpyid 16049 phtpycolem4 16054 pcohtpylem3 16082 cmtfval 16937 isoml 16959 islvec 17188 paddfval 17258 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-gen 1305 ax-ext 1865 |
| This theorem depends on definitions: df-bi 164 df-cleq 1877 |