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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 3953 | 1 ⊢ (𝜑 → 𝐴 ⊆ 𝐶) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1569 ⊆ wss 3896 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-9 2154 ax-ext 2732 |
| This proof depends on definitions: df-bi 210 df-an 402 df-ex 1812 df-cleq 2752 df-ss 3897 |
| This theorem is used by: eqimsscd 3966 mptss 6036 ffvresb 7131 tposss 8251 sbthlem5 9117 rankxpl 9899 winafp 10789 wunex2 10830 iooval2 13516 telfsumo 15978 structcnvcnv 17340 ressbasssg 17424 ressbasssOLD 17427 resspos 18612 resstos 18613 tsrdir 18787 idresefmnd 19104 idrespermg 19634 symgsssg 19690 gsumzoppg 20167 submomnd 20355 suborng 21142 lidlssbas 21501 dsmmsubg 22058 cnclsi 23599 txss12 23933 txbasval 23934 kqsat 24059 kqcldsat 24061 fmss 24274 cfilucfil 24887 tngtopn 24978 dvaddf 26271 dvmulf 26272 dvcof 26277 dvmptres3 26285 dvmptres2 26291 dvmptcmul 26293 dvmptcj 26297 dvcnvlem 26305 dvcnv 26306 dvcnvrelem1 26346 dvcnvrelem2 26347 plyrem 26635 ulmss 26733 ulmdvlem1 26736 ulmdvlem3 26738 ulmdv 26739 isppw 27450 dchrelbas2 27573 chsupsn 32024 pjss1coi 32774 off2 33286 padct 33361 elrgspnsubrunlem2 33859 elrspunidl 34028 evl1deg2 34159 submatres 34488 madjusmdetlem2 34510 madjusmdetlem3 34511 omsmon 34980 signstfvn 35248 elmsta 36403 mthmpps 36437 dissneqlem 38372 exrecfnlem 38411 prjcrv0 43778 hbtlem6 44240 ofoaf 44466 dvmulcncf 47043 dvdivcncf 47045 itgsubsticclem 47093 |
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