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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 3844 opbrop 5754 fvdifsupp 8216 wemapso2lem 9573 uzin 13028 supxrre1 13487 ixxun 13519 uzsplit 13757 pfxsuffeqwrdeq 14875 ello12 15712 elo12 15723 fsumss 15920 fprodss 16144 ramval 17215 issect2 17958 ellspsn5b 21300 cnprest 23637 cnprest2 23638 cnt0 23694 1stccn 23812 kgencn 23905 qtopcn 24063 fbflim 24325 isflf 24342 cnflf 24351 fclscf 24374 cnfcf 24391 elbl2ps 24738 elbl2 24739 metcn 24892 txmetcn 24897 iscvs 25478 lmclimf 25655 ovolfioo 25818 ovolficc 25819 ovoliun 25856 ismbl2 25878 mbfmulc2lem 25998 mbfmax 26000 mbfposr 26003 mbfaddlem 26011 mbfsup 26015 mbfi1fseqlem4 26069 itg2monolem1 26101 itg2cnlem1 26112 tgellng 29046 isleag 29396 ttgelitv 29490 isspthonpth 30365 clwlkclwwlkflem 30625 clwwlkwwlksb 30675 suppgsumssiun 33703 isfxp 33799 lindflbs 34004 ply1degleel 34197 selvply1rhmlem2 34223 algextdeglem7 34425 ismntoplly 34727 esum2dlem 34794 brlexod 35999 brr0d 36001 maxssj0 36006 ntrclselnel1 45249 ntrneicls00 45281 vonvolmbl 47876 dfdfat2 48403 crngprmringidom 49643 ipolubdm 50306 ipoglbdm 50309 isup 50501 functhinc 50788 |
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