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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 2769 | . 2 ⊢ (𝜑 → 𝐴 = 𝐵) |
| 3 | eqsstrrdi.2 | . 2 ⊢ 𝐵 ⊆ 𝐶 | |
| 4 | 2, 3 | eqsstrdi 3957 | 1 ⊢ (𝜑 → 𝐴 ⊆ 𝐶) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1570 ⊆ wss 3900 |
| 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 1945 ax-6 2002 ax-7 2043 ax-9 2157 ax-ext 2735 |
| This proof depends on definitions: df-bi 210 df-an 402 df-ex 1813 df-cleq 2755 df-ss 3901 |
| This theorem is used by: eqimsscd 3970 mptss 6052 ffvresb 7158 tposss 8282 sbthlem5 9148 rankxpl 9929 winafp 10821 wunex2 10862 iooval2 13549 telfsumo 16013 structcnvcnv 17375 ressbasssg 17459 ressbasssOLD 17462 resspos 18653 resstos 18654 tsrdir 18828 idresefmnd 19145 idrespermg 19676 symgsssg 19732 gsumzoppg 20209 submomnd 20397 suborng 21184 lidlssbas 21543 dsmmsubg 22104 cnclsi 23645 txss12 23979 txbasval 23980 kqsat 24105 kqcldsat 24107 fmss 24320 cfilucfil 24933 tngtopn 25024 dvaddf 26317 dvmulf 26318 dvcof 26323 dvmptres3 26331 dvmptres2 26337 dvmptcmul 26339 dvmptcj 26343 dvcnvlem 26351 dvcnv 26352 dvcnvrelem1 26392 dvcnvrelem2 26393 plyrem 26681 ulmss 26781 ulmdvlem1 26784 ulmdvlem3 26786 ulmdv 26787 isppw 27498 dchrelbas2 27621 chsupsn 32072 pjss1coi 32822 off2 33333 padct 33407 elrgspnsubrunlem2 33908 elrspunidl 34082 evl1deg2 34212 submatres 34549 madjusmdetlem2 34571 madjusmdetlem3 34572 omsmon 35041 signstfvn 35309 elmsta 36521 mthmpps 36555 dissneqlem 38531 exrecfnlem 38570 prjcrv0 43935 hbtlem6 44396 ofoaf 44618 dvmulcncf 47208 dvdivcncf 47210 itgsubsticclem 47258 |
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