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| Mirrors > Home > MPE Home > Th. List > biadanii | Structured version Visualization version GIF version | ||
| Description: Inference associated with biadani 832. Add a conjunction to an equivalence. (Contributed by Jeff Madsen, 20-Jun-2011.) (Proof shortened by BJ, 4-Mar-2023.) |
| Ref | Expression |
|---|---|
| biadani.1 | ⊢ (𝜑 → 𝜓) |
| biadanii.2 | ⊢ (𝜓 → (𝜑 ↔ 𝜒)) |
| Ref | Expression |
|---|---|
| biadanii | ⊢ (𝜑 ↔ (𝜓 ∧ 𝜒)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | biadanii.2 | . 2 ⊢ (𝜓 → (𝜑 ↔ 𝜒)) | |
| 2 | biadani.1 | . . 3 ⊢ (𝜑 → 𝜓) | |
| 3 | 2 | biadani 832 | . 2 ⊢ ((𝜓 → (𝜑 ↔ 𝜒)) ↔ (𝜑 ↔ (𝜓 ∧ 𝜒))) |
| 4 | 1, 3 | mpbi 233 | 1 ⊢ (𝜑 ↔ (𝜓 ∧ 𝜒)) |
| 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: elab4g 3640 elpwb 4568 ssdifsn 4751 brab2a 5749 cnveq0b 6198 elon2 6380 elovmpo 7676 eqop2 8054 iscard 10069 iscard2 10070 elnnnn0 12662 elfzo2 13809 bitsval 16609 1nprm 16869 funcpropd 18092 isfull 18102 isfth 18106 ismgmhm 18900 ismhm 18995 isghm 19445 ghmpropd 19485 isga 19520 oppgcntz 19593 gexdvdsi 19812 isrnghm 20686 isrhm 20724 issdrg 21060 abvpropd 21107 islmhm 21317 dfprm2 21794 prmirred 21795 elocv 21989 isobs 22041 iscn2 23571 iscnp2 23572 islocfin 23851 elflim2 24298 isfcls 24343 isnghm 25057 isnmhm 25080 0plef 26008 elply 26528 dchrelbas4 27585 brslts 28163 nb3grpr 29978 ispligb 31094 isph 31439 abfmpunirn 33303 iscvm 36148 sscoid 36805 bj-pwvrelb 37940 bj-elsnb 38118 bj-ideqb 38223 bj-opelidb1ALT 38230 bj-elid5 38233 eldiophb 43911 eldioph3b 43919 eldioph4b 43961 bropabg 44468 brfvrcld2 44835 islmd 50990 iscmd 50991 |
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