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| Mirrors > Home > MPE Home > Th. List > sylan9bb | Structured version Visualization version GIF version | ||
| Description: Nested syllogism inference conjoining dissimilar antecedents. (Contributed by NM, 4-Mar-1995.) |
| Ref | Expression |
|---|---|
| sylan9bb.1 | ⊢ (𝜑 → (𝜓 ↔ 𝜒)) |
| sylan9bb.2 | ⊢ (𝜃 → (𝜒 ↔ 𝜏)) |
| Ref | Expression |
|---|---|
| sylan9bb | ⊢ ((𝜑 ∧ 𝜃) → (𝜓 ↔ 𝜏)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sylan9bb.1 | . . 3 ⊢ (𝜑 → (𝜓 ↔ 𝜒)) | |
| 2 | 1 | adantr 481 | . 2 ⊢ ((𝜑 ∧ 𝜃) → (𝜓 ↔ 𝜒)) |
| 3 | sylan9bb.2 | . . 3 ⊢ (𝜃 → (𝜒 ↔ 𝜏)) | |
| 4 | 3 | adantl 482 | . 2 ⊢ ((𝜑 ∧ 𝜃) → (𝜒 ↔ 𝜏)) |
| 5 | 2, 4 | bitrd 280 | 1 ⊢ ((𝜑 ∧ 𝜃) → (𝜓 ↔ 𝜏)) |
| 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: sylan9bbr 515 baibd 544 syl3an9b 1442 nanbi12 1510 elequ12 2137 sbcom2 2183 2sb5rf 2480 2sb6rf 2481 eqeqan12d 2753 eleq12 2829 ceqsrex2v 3596 elabd2 3608 elabgt 3610 sseq12 3942 csbie2df 4371 2ralsng 4610 rexprgf 4627 rextpg 4631 breq12 5077 reusv2lem5 5331 opelopabg 5480 brabg 5481 opelopabgf 5482 opelopab2 5483 rbropapd 5504 poeq12d 5531 soeq12d 5549 freq12d 5587 seeq12d 5590 weeq12d 5607 ralxpf 5788 feq23 6636 f00 6709 fconstg 6714 f1oeq23 6758 f1o00 6802 fnelfp 7119 fnelnfp 7121 isofrlem 7284 f1oiso 7295 riota1a 7335 cbvmpox 7449 caovord 7567 caovord3 7569 f1oweALT 7914 mpof1o2d 8065 oaordex 8483 oaass 8486 odi 8504 findcard2s 9090 unfilem1 9205 tfsnfin2 9263 suppeqfsuppbi 9282 oieu 9444 r1pw 9760 carddomi2 9885 isacn 9957 djudom2 10097 axdc2 10362 alephval2 10486 distrlem4pr 10940 axpre-sup 11083 nn0ind-raph 12620 elpq 12916 xnn0xadd0 13190 elfz 13458 elfzp12 13548 expeq0 14045 leiso 14412 wrd2ind 14676 trcleq12lem 14946 dfrtrclrec2 15011 shftfib 15025 absdvdsb 16234 dvdsabsb 16235 dvdsabseq 16273 unbenlem 16870 isprs 18253 isdrs 18258 pltval 18287 lublecllem 18315 istos 18373 isdlat 18479 znfld 21535 tgss2 22970 isopn2 23015 cnpf2 23233 lmbr 23241 isreg2 23360 fclsrest 24007 qustgplem 24104 ustuqtoplem 24222 xmetec 24417 nmogelb 24699 metdstri 24835 tcphcph 25222 ulmval 26363 2lgslem1a 27372 elmade 27867 bdayle 27926 iscgrg 28598 istrlson 29791 ispthson 29828 isspthson 29829 elwwlks2on 30047 eupth2lem1 30306 eigrei 31923 eigorthi 31926 jplem1 32357 superpos 32443 chrelati 32453 br8d 32700 ellpi 33456 issiga 34296 eulerpartlemgvv 34560 cplgredgex 35349 acycgrcycl 35375 br8 35984 br6 35985 br4 35986 brsegle 36336 topfne 36582 tailfb 36605 filnetlem1 36606 nndivsub 36685 bj-rest10 37446 isbasisrelowllem1 37717 isbasisrelowllem2 37718 fvineqsnf1 37772 wl-2sb6d 37929 curf 37965 curunc 37969 poimirlem26 38013 mblfinlem2 38025 cnambfre 38035 itgaddnclem2 38046 ftc1anclem1 38060 grpokerinj 38260 rngoisoval 38344 smprngopr 38419 parteq12 39246 ax12eq 39433 ax12el 39434 2llnjN 40059 2lplnj 40112 elpadd0 40301 lauteq 40587 lpolconN 41979 rexrabdioph 43239 tfsnfin 43797 eliunov2 44123 nzss 44761 iotasbc2 44864 or2expropbilem2 47496 elsetpreimafvbi 47866 reuopreuprim 48001 grlicref 48503 cbvmpox2 48827 naryfvalel 49121 line2x 49245 brab2ddw 49319 brab2ddw2 49320 |
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