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Related theorems GIF version |
| Description: Deduction form of bitr3 153. |
| Ref | Expression |
|---|---|
| bitr3d.1 | ⊢ (φ → (ψ ↔ χ)) |
| bitr3d.2 | ⊢ (φ → (ψ ↔ θ)) |
| Ref | Expression |
|---|---|
| bitr3d | ⊢ (φ → (χ ↔ θ)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | bitr3d.1 | . . 3 ⊢ (φ → (ψ ↔ χ)) | |
| 2 | 1 | bicomd 399 | . 2 ⊢ (φ → (χ ↔ ψ)) |
| 3 | bitr3d.2 | . 2 ⊢ (φ → (ψ ↔ θ)) | |
| 4 | 2, 3 | bitrd 406 | 1 ⊢ (φ → (χ ↔ θ)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 2 ↔ wb 127 |
| This theorem is referenced by: 3bitr3d 423 sbequ12a 867 sbco2 913 sbco3 915 sbcom 916 sbcom2 992 sbal1 996 sbal 997 elabf 1414 sbc5g 1450 sbc6g 1451 sbcel1 1466 sbcel2 1467 sbcgf 1469 copsex2g 1903 iununi 2037 opabsb 2114 opelopabg 2115 ordtri2 2233 onmindif 2312 onmindif2 2313 dfom2 2374 fcnvres 2768 isocnv 2934 isoini 2938 oa00 3161 mapxpen 3390 omsucdom 3418 isfinite2 3437 unfilem1 3438 rankr1a 3521 r1val2 3522 bnd2 3549 fodomb 3615 domtri 3644 iscard 3659 suplem2pr 3956 addcan2t 4123 ltsub13t 4360 ltmuldiv2t 4407 lt2sq 4414 nn1suc 4435 nnsub 4450 elnn0nn 4593 elnnnn0 4594 uzind 4603 zbtwnre 4619 om2uzlt 4654 sqrsq 4764 znnen 4930 hi2eqt 5059 ch0psst 5370 pjelt 5668 jp 5703 chcv2t 5752 cvp 5764 atnem0 5766 |
| This theorem was proved from axioms: ax-1 3 ax-2 4 ax-3 5 ax-mp 6 |
| This theorem depends on definitions: df-bi 128 df-an 198 |