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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 2766 | . 2 ⊢ (𝜑 → 𝐴 = 𝐵) |
| 3 | eqsstrrdi.2 | . 2 ⊢ 𝐵 ⊆ 𝐶 | |
| 4 | 2, 3 | eqsstrdi 3975 | 1 ⊢ (𝜑 → 𝐴 ⊆ 𝐶) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1570 ⊆ wss 3899 |
| 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 2155 ax-ext 2732 |
| This proof depends on definitions: df-bi 210 df-an 402 df-ex 1813 df-cleq 2752 df-ss 3916 |
| This theorem is used by: eqimsscd 3988 mptss 6038 ffvresb 7119 tposss 8225 sbthlem5 9089 rankxpl 9857 winafp 10706 wunex2 10747 iooval2 13431 telfsumo 15889 structcnvcnv 17245 ressbasssg 17329 ressbasssOLD 17332 resspos 18517 resstos 18518 tsrdir 18692 idresefmnd 19008 idrespermg 19538 symgsssg 19594 gsumzoppg 20071 submomnd 20259 suborng 21042 lidlssbas 21401 dsmmsubg 21956 cnclsi 23497 txss12 23831 txbasval 23832 kqsat 23957 kqcldsat 23959 fmss 24172 cfilucfil 24785 tngtopn 24876 dvaddf 26169 dvmulf 26170 dvcof 26175 dvmptres3 26183 dvmptres2 26189 dvmptcmul 26191 dvmptcj 26195 dvcnvlem 26203 dvcnv 26204 dvcnvrelem1 26244 dvcnvrelem2 26245 plyrem 26535 ulmss 26633 ulmdvlem1 26636 ulmdvlem3 26638 ulmdv 26639 isppw 27350 dchrelbas2 27473 chsupsn 31894 pjss1coi 32644 off2 33114 padct 33189 elrgspnsubrunlem2 33688 elrspunidl 33856 evl1deg2 33987 submatres 34316 madjusmdetlem2 34338 madjusmdetlem3 34339 omsmon 34809 signstfvn 35077 elmsta 36127 mthmpps 36161 dissneqlem 38094 exrecfnlem 38133 prjcrv0 43479 hbtlem6 43970 ofoaf 44196 dvmulcncf 46753 dvdivcncf 46755 itgsubsticclem 46803 |
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