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| Mirrors > Home > MPE Home > Th. List > mpbirand | Structured version Visualization version GIF version | ||
| Description: Detach truth from conjunction in biconditional. (Contributed by Glauco Siliprandi, 3-Mar-2021.) |
| Ref | Expression |
|---|---|
| mpbirand.1 | ⊢ (𝜑 → 𝜒) |
| mpbirand.2 | ⊢ (𝜑 → (𝜓 ↔ (𝜒 ∧ 𝜃))) |
| Ref | Expression |
|---|---|
| mpbirand | ⊢ (𝜑 → (𝜓 ↔ 𝜃)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | mpbirand.2 | . 2 ⊢ (𝜑 → (𝜓 ↔ (𝜒 ∧ 𝜃))) | |
| 2 | mpbirand.1 | . . 3 ⊢ (𝜑 → 𝜒) | |
| 3 | 2 | biantrurd 542 | . 2 ⊢ (𝜑 → (𝜃 ↔ (𝜒 ∧ 𝜃))) |
| 4 | 1, 3 | bitr4d 285 | 1 ⊢ (𝜑 → (𝜓 ↔ 𝜃)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 ∧ wa 401 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 |
| This proof depends on definitions: df-bi 210 df-an 402 |
| This theorem is used by: mpbiran2d 721 3anibar 1348 rmob2 3839 opbrop 5748 fvdifsupp 8191 wemapso2lem 9549 uzin 13004 supxrre1 13463 ixxun 13495 uzsplit 13733 pfxsuffeqwrdeq 14851 ello12 15688 elo12 15699 fsumss 15896 fprodss 16120 ramval 17191 issect2 17934 ellspsn5b 21275 cnprest 23612 cnprest2 23613 cnt0 23669 1stccn 23787 kgencn 23880 qtopcn 24038 fbflim 24300 isflf 24317 cnflf 24326 fclscf 24349 cnfcf 24366 elbl2ps 24713 elbl2 24714 metcn 24867 txmetcn 24872 iscvs 25453 lmclimf 25630 ovolfioo 25793 ovolficc 25794 ovoliun 25831 ismbl2 25853 mbfmulc2lem 25973 mbfmax 25975 mbfposr 25978 mbfaddlem 25986 mbfsup 25990 mbfi1fseqlem4 26044 itg2monolem1 26076 itg2cnlem1 26087 tgellng 29021 isleag 29371 ttgelitv 29465 isspthonpth 30340 clwlkclwwlkflem 30600 clwwlkwwlksb 30650 suppgsumssiun 33679 isfxp 33775 lindflbs 33980 ply1degleel 34173 selvply1rhmlem2 34199 algextdeglem7 34401 ismntoplly 34703 esum2dlem 34770 brlexod 35938 brr0d 35940 maxssj0 35945 ntrclselnel1 45150 ntrneicls00 45182 vonvolmbl 47764 dfdfat2 48291 crngprmringidom 49531 ipolubdm 50194 ipoglbdm 50197 isup 50389 functhinc 50676 |
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