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| Mirrors > Home > MPE Home > Th. List > eqsstrrdi | Structured version Visualization version GIF version | ||
| Description: A chained subclass and equality deduction. (Contributed by Mario Carneiro, 2-Jan-2017.) |
| Ref | Expression |
|---|---|
| eqsstrrdi.1 | ⊢ (𝜑 → 𝐵 = 𝐴) |
| eqsstrrdi.2 | ⊢ 𝐵 ⊆ 𝐶 |
| Ref | Expression |
|---|---|
| eqsstrrdi | ⊢ (𝜑 → 𝐴 ⊆ 𝐶) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqsstrrdi.1 | . . 3 ⊢ (𝜑 → 𝐵 = 𝐴) | |
| 2 | 1 | eqcomd 2771 | . 2 ⊢ (𝜑 → 𝐴 = 𝐵) |
| 3 | eqsstrrdi.2 | . 2 ⊢ 𝐵 ⊆ 𝐶 | |
| 4 | 2, 3 | eqsstrdi 3982 | 1 ⊢ (𝜑 → 𝐴 ⊆ 𝐶) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1570 ⊆ wss 3906 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-9 2156 ax-ext 2737 |
| This proof depends on definitions: df-bi 210 df-an 402 df-ex 1813 df-cleq 2757 df-ss 3923 |
| This theorem is used by: eqimsscd 3995 mptss 6046 ffvresb 7125 tposss 8229 sbthlem5 9086 rankxpl 9854 winafp 10697 wunex2 10738 iooval2 13421 telfsumo 15877 structcnvcnv 17235 ressbasssg 17319 ressbasssOLD 17322 resspos 18507 resstos 18508 tsrdir 18682 idresefmnd 18995 idrespermg 19525 symgsssg 19581 gsumzoppg 20058 submomnd 20246 suborng 21029 lidlssbas 21388 dsmmsubg 21943 cnclsi 23479 txss12 23813 txbasval 23814 kqsat 23939 kqcldsat 23941 fmss 24154 cfilucfil 24767 tngtopn 24858 dvaddf 26152 dvmulf 26153 dvcof 26158 dvmptres3 26166 dvmptres2 26172 dvmptcmul 26174 dvmptcj 26178 dvcnvlem 26186 dvcnv 26187 dvcnvrelem1 26227 dvcnvrelem2 26228 plyrem 26517 ulmss 26611 ulmdvlem1 26614 ulmdvlem3 26616 ulmdv 26617 isppw 27329 dchrelbas2 27452 chsupsn 31836 pjss1coi 32586 off2 33057 padct 33133 elrgspnsubrunlem2 33632 elrspunidl 33800 evl1deg2 33931 submatres 34260 madjusmdetlem2 34282 madjusmdetlem3 34283 omsmon 34753 signstfvn 35021 elmsta 36077 mthmpps 36111 dissneqlem 38043 exrecfnlem 38082 prjcrv0 43423 hbtlem6 43914 ofoaf 44140 dvmulcncf 46697 dvdivcncf 46699 itgsubsticclem 46747 |
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