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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 21146 cnprest 23476 cnprest2 23477 cnt0 23533 1stccn 23650 kgencn 23743 qtopcn 23901 fbflim 24163 isflf 24180 cnflf 24189 fclscf 24212 cnfcf 24229 elbl2ps 24576 elbl2 24577 metcn 24730 txmetcn 24735 iscvs 25316 lmclimf 25493 ovolfioo 25656 ovolficc 25657 ovoliun 25694 ismbl2 25716 mbfmulc2lem 25836 mbfmax 25838 mbfposr 25841 mbfaddlem 25849 mbfsup 25853 mbfi1fseqlem4 25907 itg2monolem1 25939 itg2cnlem1 25950 tgellng 28852 isleag 29194 ttgelitv 29262 isspthonpth 30128 clwlkclwwlkflem 30385 clwwlkwwlksb 30435 suppgsumssiun 33416 isfxp 33512 lindflbs 33716 ply1degleel 33909 selvply1rhmlem2 33935 algextdeglem7 34137 ismntoplly 34439 esum2dlem 34506 ntrclselnel1 44816 ntrneicls00 44848 vonvolmbl 47408 dfdfat2 47898 crngprmringidom 49139 ipolubdm 49798 ipoglbdm 49801 isup 49991 functhinc 50259 |
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