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| Mirrors > Home > MPE Home > Th. List > biadanii | Structured version Visualization version GIF version | ||
| Description: Inference associated with biadani 826. 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 826 | . 2 ⊢ ((𝜓 → (𝜑 ↔ 𝜒)) ↔ (𝜑 ↔ (𝜓 ∧ 𝜒))) |
| 4 | 1, 3 | mpbi 232 | 1 ⊢ (𝜑 ↔ (𝜓 ∧ 𝜒)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 208 ∧ wa 397 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 |
| This theorem depends on definitions: df-bi 209 df-an 398 |
| This theorem is referenced by: elab4g 3623 elpwb 4540 ssdifsn 4724 brab2a 5714 elon2 6325 elovmpo 7605 eqop2 7978 iscard 9894 iscard2 9895 elnnnn0 12475 elfzo2 13611 bitsval 16388 1nprm 16643 funcpropd 17864 isfull 17874 isfth 17878 ismgmhm 18659 ismhm 18748 isghm 19185 isghmOLD 19186 ghmpropd 19226 isga 19261 oppgcntz 19334 gexdvdsi 19553 isrnghm 20416 isrhm 20453 issdrg 20764 abvpropd 20811 islmhm 21021 dfprm2 21452 prmirred 21453 elocv 21647 isobs 21699 iscn2 23225 iscnp2 23226 islocfin 23504 elflim2 23951 isfcls 23996 isnghm 24710 isnmhm 24733 0plef 25661 elply 26182 dchrelbas4 27228 brslts 27776 nb3grpr 29473 ispligb 30570 isph 30915 abfmpunirn 32748 iscvm 35502 sscoid 36154 bj-pwvrelb 37266 bj-elsnb 37429 bj-ideqb 37534 bj-opelidb1ALT 37541 bj-elid5 37544 eldiophb 43221 eldioph3b 43229 eldioph4b 43271 bropabg 43783 brfvrcld2 44151 islmd 50169 iscmd 50170 |
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