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| Description: Substitution of equality into a subclass relationship. |
| Ref | Expression |
|---|---|
| eqsstr.1 |
|
| eqsstr.2 |
|
| Ref | Expression |
|---|---|
| eqsstr |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqsstr.2 |
. 2
| |
| 2 | eqsstr.1 |
. . 3
| |
| 3 | 2 | sseq1i 2075 |
. 2
|
| 4 | 1, 3 | mpbir 190 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: eqsstr3 2082 ssrab2 2121 opabss 2658 dmopabss 3310 resss 3367 relres 3371 rnin 3444 cnvcnvss 3474 fabexg 3638 f0 3641 tz6.12-2 3724 fvopab4ndm 3769 dmoprabss 3988 oawordeulem 4172 ecopoprdm 4293 ecopoprsym 4294 ecopoprtrn 4295 sbthlem7 4433 inf3lem1 4585 rankval3 4653 rankuni2 4662 rankuni 4670 rankuniss 4673 cplem1 4692 hta 4700 ac6lem 4726 zorn2lem1 4760 zorn2lem3 4762 zorn2lem4 4763 zorn2lem5 4764 imadomg 4778 pinn 4978 niex 4981 ltrelpi 4989 dmaddpi 4990 dmmulpi 4991 enqex 5020 ltrelpq 5023 dmaddpq 5031 dmmulpq 5033 ltrelpr 5073 enrex 5150 ltrelsr 5152 dmaddsr 5166 dmmulsr 5167 ltrelre 5224 axaddopr 5237 axmulopr 5238 nn0ssre 6050 nn0ssz 6099 rpret 6222 uzssz 6362 sqrlem6 6608 cau5 6856 cvganuz 6862 sumex 6919 caucvglem2 7094 infcvgaux1 7154 ivthlem4 7219 ivthlem5 7220 ivthlem7 7222 ivthlem9 7224 ivthlem4OLD 7228 ivthlem5OLD 7229 ivthlem7OLD 7231 infpn2 7452 subbas 7586 lmbr2 7867 lmbrf 7868 iscau3 7876 iscauf 7877 bcthlem14 7946 issubgi 8059 ghsubgi 8075 nvss 8150 nvvcop 8151 phnv 8404 pilem2 8591 pilem3 8592 circgrpOLD 8658 shftefif1olem 8661 shftefif1olemOLD 8662 explogt 8694 chsssh 9015 projlem8 9109 shscl 9196 shjshs 9330 3oalem4 9527 pjf 9566 dmadjss 9736 nmcopexlem4 9869 nmcfnexlem4 9898 nlelsh 9908 hmopidmch 9990 hmopidmpj 9991 atssch 10178 shatomistic 10196 ghomgrpilem2 10291 dmhmph 10419 rnhmph 10420 1alg 10498 strded 10516 strcat 10537 |
| 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 |