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| Mirrors > Home > MPE Home > Th. List > biadanii | Structured version Visualization version GIF version | ||
| Description: Inference associated with biadani 825. 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 825 | . 2 ⊢ ((𝜓 → (𝜑 ↔ 𝜒)) ↔ (𝜑 ↔ (𝜓 ∧ 𝜒))) |
| 4 | 1, 3 | mpbi 231 | 1 ⊢ (𝜑 ↔ (𝜓 ∧ 𝜒)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 207 ∧ wa 396 |
| 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 208 df-an 397 |
| This theorem is referenced by: elab4g 3621 elpwb 4537 ssdifsn 4721 brab2a 5711 elon2 6321 elovmpo 7601 eqop2 7974 iscard 9890 iscard2 9891 elnnnn0 12471 elfzo2 13607 bitsval 16384 1nprm 16639 funcpropd 17860 isfull 17870 isfth 17874 ismgmhm 18655 ismhm 18744 isghm 19181 isghmOLD 19182 ghmpropd 19222 isga 19257 oppgcntz 19330 gexdvdsi 19549 isrnghm 20412 isrhm 20449 issdrg 20760 abvpropd 20807 islmhm 21017 dfprm2 21448 prmirred 21449 elocv 21643 isobs 21695 iscn2 23221 iscnp2 23222 islocfin 23500 elflim2 23947 isfcls 23992 isnghm 24706 isnmhm 24729 0plef 25657 elply 26178 dchrelbas4 27224 brslts 27772 nb3grpr 29469 ispligb 30566 isph 30911 abfmpunirn 32744 iscvm 35487 sscoid 36139 bj-pwvrelb 37251 bj-elsnb 37414 bj-ideqb 37519 bj-opelidb1ALT 37526 bj-elid5 37529 eldiophb 43206 eldioph3b 43214 eldioph4b 43256 bropabg 43768 brfvrcld2 44136 islmd 50155 iscmd 50156 |
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