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Related theorems GIF version |
| Description: A syllogism deduction. |
| Ref | Expression |
|---|---|
| sylbid.1 | ⊢ (φ → (ψ ↔ χ)) |
| sylbid.2 | ⊢ (φ → (χ → θ)) |
| Ref | Expression |
|---|---|
| sylbid | ⊢ (φ → (ψ → θ)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sylbid.1 | . . 3 ⊢ (φ → (ψ ↔ χ)) | |
| 2 | 1 | biimpd 135 | . 2 ⊢ (φ → (ψ → χ)) |
| 3 | sylbid.2 | . 2 ⊢ (φ → (χ → θ)) | |
| 4 | 2, 3 | syld 27 | 1 ⊢ (φ → (ψ → θ)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 2 ↔ wb 127 |
| This theorem is referenced by: 3imtr4d 421 fvco 2865 isomin 2937 tfrlem5 2953 tfrlem10 2958 tz7.48lem 2993 oevn0 3123 oaass 3163 th3qlem1 3250 dom2d 3307 fundmen 3333 unen 3338 onfin 3415 ssfi 3430 isfinite2 3437 unfilem1 3438 r1tr 3498 r1ord3 3501 bndrank 3526 aceq3 3556 fodom 3613 alephordi 3679 mulcanpi 3821 addnidpi 3822 ltexpq 3874 ltbtwnpq 3878 genpss 3901 genpcd 3903 genpnmax 3904 mulclprlem 3915 distrlem1pr 3921 distrlem4pr 3924 distrlem5pr 3925 ltexprlem3 3938 ltexprlem6 3941 ltexpri 3943 reclem4pr 3953 divadddivt 4264 lelttrt 4289 ltletrt 4290 letrt 4291 elnnz 4572 elnnz1 4581 zltp1let 4597 uzind 4603 indstr 4611 qrecclt 4646 qbtwnre 4650 om2uzf1o 4656 sqr0 4730 sqrlem6 4736 climunii 4883 hlimunii 5143 chocuni 5179 projlem26 5218 h1de2ctlem 5460 spansneleq 5475 spansnsst 5476 spansncv 5542 stadd3 5689 cvcon3t 5716 ssdmd1 5736 atom1d 5750 cvexchlem 5759 atcv0eq 5767 atexch 5769 atcvat4 5775 mdsymlem3 5778 mdsymlem5 5780 sumdmdlem 5786 |
| 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 |