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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 3849 opbrop 5764 fvdifsupp 8176 wemapso2lem 9524 uzin 12916 supxrre1 13374 ixxun 13406 uzsplit 13643 pfxsuffeqwrdeq 14759 ello12 15593 elo12 15604 fsumss 15802 fprodss 16028 ramval 17093 issect2 17836 ellspsn5b 21153 cnprest 23483 cnprest2 23484 cnt0 23540 1stccn 23657 kgencn 23750 qtopcn 23908 fbflim 24170 isflf 24187 cnflf 24196 fclscf 24219 cnfcf 24236 elbl2ps 24583 elbl2 24584 metcn 24737 txmetcn 24742 iscvs 25323 lmclimf 25500 ovolfioo 25663 ovolficc 25664 ovoliun 25701 ismbl2 25723 mbfmulc2lem 25843 mbfmax 25845 mbfposr 25848 mbfaddlem 25856 mbfsup 25860 mbfi1fseqlem4 25914 itg2monolem1 25946 itg2cnlem1 25957 tgellng 28859 isleag 29201 ttgelitv 29269 isspthonpth 30135 clwlkclwwlkflem 30392 clwwlkwwlksb 30442 suppgsumssiun 33423 isfxp 33519 lindflbs 33723 ply1degleel 33916 selvply1rhmlem2 33942 algextdeglem7 34144 ismntoplly 34446 esum2dlem 34513 ntrclselnel1 44824 ntrneicls00 44856 vonvolmbl 47416 dfdfat2 47906 crngprmringidom 49147 ipolubdm 49806 ipoglbdm 49809 isup 49999 functhinc 50267 |
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