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Related theorems GIF version |
| Description: A mixed syllogism inference. |
| Ref | Expression |
|---|---|
| syl5bi.1 | ⊢ (φ → (ψ ↔ χ)) |
| syl5bi.2 | ⊢ (θ → ψ) |
| Ref | Expression |
|---|---|
| syl5bi | ⊢ (φ → (θ → χ)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | syl5bi.1 | . . 3 ⊢ (φ → (ψ ↔ χ)) | |
| 2 | 1 | biimpd 135 | . 2 ⊢ (φ → (ψ → χ)) |
| 3 | syl5bi.2 | . 2 ⊢ (θ → ψ) | |
| 4 | 2, 3 | syl5 22 | 1 ⊢ (φ → (θ → χ)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 2 ↔ wb 127 |
| This theorem is referenced by: gencl 1365 a4sbc 1444 hbsbcg 1445 ssnelpss 1751 prex 1892 opth 1898 sotric 2148 sotrieq 2149 nordeq 2218 ordtri3 2234 nsuceq0 2306 brelg 2458 optocl 2469 funimass1 2712 f1ocnvb 2812 tz6.12-2 2845 fniunfv 2860 cleqfv 2880 f1fv 2916 f1ocnvfv 2921 f1ocnvfvb 2922 tz7.48-1 2994 tz7.49 2997 oawordeulem 3156 oalimcl 3162 ectocl 3238 ecoptocl 3239 eceqopreq 3249 mapsn 3269 eqeng 3296 undom 3342 pw2en 3348 mapdom2 3389 isfinite2 3437 unfi 3441 suc11reg 3456 inf0 3457 inf3lem6 3469 scott0 3542 aceq5 3563 zornlem4 3606 zornlem5 3607 zornlem6 3608 carduni 3664 axrepndlem2 3739 axunnd 3742 axregnd 3750 mulcanpi 3821 indpi 3828 ltaddpq 3873 nsmallpq 3877 ltbtwnpq 3878 addclprlem1 3912 distrlem4pr 3924 ltaddpr2 3935 ltaprlem 3944 reclem3pr 3952 supsrlem2 4020 axrecex 4079 negeu 4124 receu 4215 divge0 4392 nnaddclt 4436 crulem 4528 lt0nnn0 4549 zmulclt 4596 zneo 4601 qnegclt 4643 om2uzlt 4654 om2uzran 4655 ruclem33 4917 ruclem35 4919 infmap2lem2 4952 projlem13 5205 projlem31 5223 dfch2 5254 pjoml 5271 shmods 5363 shmod 5364 orthin 5371 h1dn0 5457 spansneleqi 5474 spansncv 5542 stm1 5684 strlem4 5695 strlem5 5696 mdbr2 5728 dmdbr 5731 atcvatlem 5770 atcvat4 5775 mdsymlem3 5778 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 |