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| Description: Equality implies the subclass relation. |
| Ref | Expression |
|---|---|
| eqimss2 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqimss 2153 |
. 2
| |
| 2 | 1 | eqcoms 1515 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: vss 2352 suc11 3148 dmcoeq 3426 xp11 3532 fconst3 3926 oaass 4279 odi 4294 oen0 4297 zorn 4883 subgres 8236 hstoh 10277 dmdi2 10349 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 994 ax-gen 995 ax-8 996 ax-10 998 ax-12 1000 ax-17 1003 ax-4 1005 ax-5o 1007 ax-6o 1010 ax-9o 1155 ax-10o 1173 ax-16 1243 ax-11o 1251 ax-ext 1494 |
| This theorem depends on definitions: df-bi 145 df-an 223 df-ex 1013 df-sb 1205 df-clab 1500 df-cleq 1505 df-clel 1508 df-in 2095 df-ss 2097 |