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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 3843 opbrop 5757 fvdifsupp 8173 wemapso2lem 9528 uzin 12927 supxrre1 13386 ixxun 13418 uzsplit 13655 pfxsuffeqwrdeq 14771 ello12 15607 elo12 15618 fsumss 15815 fprodss 16041 ramval 17106 issect2 17849 ellspsn5b 21185 cnprest 23520 cnprest2 23521 cnt0 23577 1stccn 23695 kgencn 23788 qtopcn 23946 fbflim 24208 isflf 24225 cnflf 24234 fclscf 24257 cnfcf 24274 elbl2ps 24621 elbl2 24622 metcn 24775 txmetcn 24780 iscvs 25361 lmclimf 25538 ovolfioo 25701 ovolficc 25702 ovoliun 25739 ismbl2 25761 mbfmulc2lem 25881 mbfmax 25883 mbfposr 25886 mbfaddlem 25894 mbfsup 25898 mbfi1fseqlem4 25952 itg2monolem1 25984 itg2cnlem1 25995 tgellng 28903 isleag 29253 ttgelitv 29347 isspthonpth 30222 clwlkclwwlkflem 30482 clwwlkwwlksb 30532 suppgsumssiun 33520 isfxp 33616 lindflbs 33820 ply1degleel 34013 selvply1rhmlem2 34039 algextdeglem7 34241 ismntoplly 34543 esum2dlem 34610 ntrclselnel1 44905 ntrneicls00 44937 vonvolmbl 47497 dfdfat2 48024 crngprmringidom 49264 ipolubdm 49921 ipoglbdm 49924 isup 50114 functhinc 50382 |
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