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| Mirrors > Home > ILE Home > Th. List > eqsstrrd | Unicode version | ||
| Description: Substitution of equality into a subclass relationship. (Contributed by NM, 25-Apr-2004.) |
| Ref | Expression |
|---|---|
| eqsstrrd.1 |
|
| eqsstrrd.2 |
|
| Ref | Expression |
|---|---|
| eqsstrrd |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqsstrrd.1 |
. . 3
| |
| 2 | 1 | eqcomd 2244 |
. 2
|
| 3 | eqsstrrd.2 |
. 2
| |
| 4 | 2, 3 | eqsstrd 3284 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-11 1559 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 |
| This proof depends on definitions: df-bi 117 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-in 3226 df-ss 3233 |
| This theorem is used by: ssxpbm 5226 ssxp1 5227 ssxp2 5228 suppssof1 6324 tfrlemiubacc 6606 tfr1onlemubacc 6622 tfrcllemubacc 6635 oaword1 6749 phplem4dom 7169 fisseneq 7248 nnnninfeq2 7475 archnqq 7790 hashdmprop2dom 11317 imasaddfnlemg 13693 resmhm2 13853 cmnsubm 14201 ringidss 14440 subrg1 14647 subrgdvds 14651 subrguss 14652 subrginv 14653 islss3 14824 lspsnneg 14865 mplsubgfileminv 15233 epttop 15333 metequiv2 15739 limccnpcntop 15918 limccnp2lem 15919 limccnp2cntop 15920 umgredgprv 16578 uspgrupgrushgr 16645 usgrumgruspgr 16648 nnsf 17271 |
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