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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 480 | . 2 ⊢ ((𝜑 ∧ 𝜃) → (𝜓 ↔ 𝜒)) |
| 3 | sylan9bb.2 | . . 3 ⊢ (𝜃 → (𝜒 ↔ 𝜏)) | |
| 4 | 3 | adantl 481 | . 2 ⊢ ((𝜑 ∧ 𝜃) → (𝜒 ↔ 𝜏)) |
| 5 | 2, 4 | bitrd 279 | 1 ⊢ ((𝜑 ∧ 𝜃) → (𝜓 ↔ 𝜏)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 |
| 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 207 df-an 396 |
| This theorem is referenced by: sylan9bbr 510 baibd 539 syl3an9b 1436 nanbi12 1504 elequ12 2131 sbcom2 2178 2sb5rf 2476 2sb6rf 2477 eqeqan12d 2750 eleq12 2826 ceqsrex2v 3612 elabd2 3624 elabgt 3626 sseq12 3961 csbie2df 4395 2ralsng 4635 rexprgf 4652 rextpg 4656 breq12 5103 reusv2lem5 5347 opelopabg 5486 brabg 5487 opelopabgf 5488 opelopab2 5489 rbropapd 5510 poeq12d 5537 soeq12d 5555 freq12d 5593 seeq12d 5596 weeq12d 5613 ralxpf 5795 feq23 6643 f00 6716 fconstg 6721 f1oeq23 6765 f1o00 6809 fnelfp 7121 fnelnfp 7123 isofrlem 7286 f1oiso 7297 riota1a 7337 cbvmpox 7451 caovord 7569 caovord3 7571 f1oweALT 7916 oaordex 8485 oaass 8488 odi 8506 findcard2s 9090 unfilem1 9205 tfsnfin2 9263 suppeqfsuppbi 9282 oieu 9444 r1pw 9757 carddomi2 9882 isacn 9954 djudom2 10094 axdc2 10359 alephval2 10483 distrlem4pr 10937 axpre-sup 11080 nn0ind-raph 12592 elpq 12888 xnn0xadd0 13162 elfz 13429 elfzp12 13519 expeq0 14015 leiso 14382 wrd2ind 14646 trcleq12lem 14916 dfrtrclrec2 14981 shftfib 14995 absdvdsb 16201 dvdsabsb 16202 dvdsabseq 16240 unbenlem 16836 isprs 18219 isdrs 18224 pltval 18253 lublecllem 18281 istos 18339 isdlat 18445 znfld 21515 tgss2 22931 isopn2 22976 cnpf2 23194 lmbr 23202 isreg2 23321 fclsrest 23968 qustgplem 24065 ustuqtoplem 24183 xmetec 24378 nmogelb 24660 metdstri 24796 tcphcph 25193 ulmval 26345 2lgslem1a 27358 elmade 27853 bdayle 27912 iscgrg 28584 istrlson 29778 ispthson 29815 isspthson 29816 elwwlks2on 30034 eupth2lem1 30293 eigrei 31909 eigorthi 31912 jplem1 32343 superpos 32429 chrelati 32439 bian1d 32530 br8d 32686 ellpi 33454 issiga 34269 eulerpartlemgvv 34533 cplgredgex 35315 acycgrcycl 35341 br8 35950 br6 35951 br4 35952 brsegle 36302 topfne 36548 tailfb 36571 filnetlem1 36572 nndivsub 36651 bj-rest10 37293 isbasisrelowllem1 37560 isbasisrelowllem2 37561 fvineqsnf1 37615 wl-2sb6d 37763 curf 37799 curunc 37803 poimirlem26 37847 mblfinlem2 37859 cnambfre 37869 itgaddnclem2 37880 ftc1anclem1 37894 grpokerinj 38094 rngoisoval 38178 smprngopr 38253 parteq12 39035 ax12eq 39201 ax12el 39202 2llnjN 39827 2lplnj 39880 elpadd0 40069 lauteq 40355 lpolconN 41747 f1o2d2 42489 rexrabdioph 43036 tfsnfin 43594 eliunov2 43920 nzss 44558 iotasbc2 44661 or2expropbilem2 47279 elsetpreimafvbi 47637 reuopreuprim 47772 grlicref 48258 cbvmpox2 48582 naryfvalel 48876 line2x 49000 brab2ddw 49074 brab2ddw2 49075 |
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