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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 2082 |
. 2
|
| 4 | 1, 3 | mpbir 190 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: eqsstr3 2089 ssrab2 2128 opabss 2664 dmopabss 3317 resss 3379 relres 3383 rnin 3454 cnvcnvss 3484 fabexg 3648 f0 3651 tz6.12-2 3734 fvopab4ndm 3779 dmoprabss 3998 oawordeulem 4181 ecopoprdm 4302 ecopoprsym 4303 ecopoprtrn 4304 sbthlem7 4442 inf3lem1 4596 rankval3 4664 rankuni2 4673 rankuni 4681 rankuniss 4684 cplem1 4703 hta 4711 ac6lem 4737 zorn2lem1 4771 zorn2lem3 4773 zorn2lem4 4774 zorn2lem5 4775 imadomg 4789 pinn 4989 niex 4992 ltrelpi 5000 dmaddpi 5001 dmmulpi 5002 enqex 5031 ltrelpq 5034 dmaddpq 5042 dmmulpq 5044 ltrelpr 5084 enrex 5161 ltrelsr 5163 dmaddsr 5177 dmmulsr 5178 ltrelre 5235 axaddopr 5248 axmulopr 5249 nn0ssre 6060 nn0ssz 6109 rpret 6234 uzssz 6375 sqrlem6 6623 cau5 6871 cvganuz 6877 sumex 6934 caucvglem2 7111 infcvgaux1 7171 ivthlem4 7236 ivthlem5 7237 ivthlem7 7239 ivthlem9 7241 ivthlem4OLD 7245 ivthlem5OLD 7246 ivthlem7OLD 7248 infpn2 7469 subbas 7604 lmbr2 7891 lmbrf 7892 iscau3 7900 iscauf 7901 bcthlem14 7974 issubgi 8086 ghsubgi 8102 nvss 8176 nvvcop 8177 phnv 8432 pilem2 8626 pilem3 8627 circgrpOLD 8693 shftefif1olem 8696 explogt 8727 chsssh 9049 projlem8 9148 shscl 9236 shjshs 9370 3oalem4 9567 pjf 9606 dmadjss 9776 nmcopexlem4 9910 nmcfnexlem4 9939 nlelsh 9949 hmopidmch 10035 hmopidmpj 10036 atssch 10226 shatomistic 10244 ghomgrpilem2 10342 dmhmph 10478 rnhmph 10479 1alg 10570 strded 10588 strcat 10609 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 961 ax-gen 962 ax-8 963 ax-10 965 ax-12 967 ax-17 970 ax-4 972 ax-5o 974 ax-6o 977 ax-9o 1122 ax-10o 1139 ax-16 1209 ax-11o 1217 ax-ext 1458 |
| This theorem depends on definitions: df-bi 147 df-an 225 df-ex 980 df-sb 1171 df-clab 1463 df-cleq 1468 df-clel 1471 df-in 2048 df-ss 2050 |