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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 2742 | . 2 ⊢ (𝜑 → 𝐴 = 𝐵) |
| 3 | eqsstrrdi.2 | . 2 ⊢ 𝐵 ⊆ 𝐶 | |
| 4 | 2, 3 | eqsstrdi 3966 | 1 ⊢ (𝜑 → 𝐴 ⊆ 𝐶) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1542 ⊆ wss 3889 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-9 2124 ax-ext 2708 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-ex 1782 df-cleq 2728 df-ss 3906 |
| This theorem is referenced by: eqimsscd 3979 mptss 6007 ffvresb 7078 tposss 8177 sbthlem5 9029 rankxpl 9799 winafp 10620 wunex2 10661 iooval2 13331 telfsumo 15765 structcnvcnv 17123 ressbasssg 17207 ressbasssOLD 17210 resspos 18395 resstos 18396 tsrdir 18570 idresefmnd 18867 idrespermg 19386 symgsssg 19442 gsumzoppg 19919 submomnd 20107 suborng 20853 lidlssbas 21211 dsmmsubg 21723 cnclsi 23237 txss12 23570 txbasval 23571 kqsat 23696 kqcldsat 23698 fmss 23911 cfilucfil 24524 tngtopn 24615 dvaddf 25909 dvmulf 25910 dvcof 25915 dvmptres3 25923 dvmptres2 25929 dvmptcmul 25931 dvmptcj 25935 dvcnvlem 25943 dvcnv 25944 dvcnvrelem1 25984 dvcnvrelem2 25985 plyrem 26271 ulmss 26362 ulmdvlem1 26365 ulmdvlem3 26367 ulmdv 26368 isppw 27077 dchrelbas2 27200 chsupsn 31484 pjss1coi 32234 off2 32714 padct 32791 elrgspnsubrunlem2 33309 elrspunidl 33488 evl1deg2 33637 submatres 33950 madjusmdetlem2 33972 madjusmdetlem3 33973 omsmon 34442 signstfvn 34713 elmsta 35730 mthmpps 35764 dissneqlem 37656 exrecfnlem 37695 prjcrv0 43066 hbtlem6 43557 ofoaf 43783 dvmulcncf 46353 dvdivcncf 46355 itgsubsticclem 46403 |
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