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| Mirrors > Home > MPE Home > Th. List > sylan9r | Structured version Visualization version GIF version | ||
| Description: Nested syllogism inference conjoining dissimilar antecedents. (Contributed by NM, 14-May-1993.) |
| Ref | Expression |
|---|---|
| sylan9r.1 | ⊢ (𝜑 → (𝜓 → 𝜒)) |
| sylan9r.2 | ⊢ (𝜃 → (𝜒 → 𝜏)) |
| Ref | Expression |
|---|---|
| sylan9r | ⊢ ((𝜃 ∧ 𝜑) → (𝜓 → 𝜏)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sylan9r.1 | . . 3 ⊢ (𝜑 → (𝜓 → 𝜒)) | |
| 2 | sylan9r.2 | . . 3 ⊢ (𝜃 → (𝜒 → 𝜏)) | |
| 3 | 1, 2 | syl9r 79 | . 2 ⊢ (𝜃 → (𝜑 → (𝜓 → 𝜏))) |
| 4 | 3 | imp 412 | 1 ⊢ ((𝜃 ∧ 𝜑) → (𝜓 → 𝜏)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 |
| This proof depends on definitions: df-bi 210 df-an 402 |
| This theorem is used by: 3orel13 1517 spimt 2415 euim 2642 ceqsalt 3483 spcimgft 3510 feldmfvelcdm 7086 limsssuc 7861 tfindsg 7872 findsg 7909 f1oweALT 7984 oaordi 8557 pssnn 9187 inf3lem2 9633 updjudhf 10015 cardlim 10056 ac10ct 10116 cardaleph 10171 cfub 10329 cfcoflem 10353 hsmexlem2 10508 zorn2lem7 10583 pwcfsdom 10671 grur1a 10907 genpcd 11094 supadd 12288 supmul 12292 zeo 12788 uzwo 13041 xrub 13445 iccsupr 13576 reuccatpfxs1lem 14899 climuni 15724 efgi2 19944 opnnei 23443 tgcn 23575 locfincf 23855 uffix 24245 alexsubALTlem2 24372 alexsubALT 24375 metrest 24848 causs 25624 ocin 31903 spanuni 32151 superpos 32961 bnj518 35562 dfac16 35810 nndivsub 37337 bj-spimtv 37798 bj-snmoore 38126 cover2 38742 metf1o 38782 sn-axprlem3 43365 intabssd 44613 relpfrlem 46036 stoweidlem62 47165 pgindnf 50977 |
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