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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 4372 2ralsng 4611 rexprgf 4628 rextpg 4632 breq12 5078 reusv2lem5 5332 opelopabg 5481 brabg 5482 opelopabgf 5483 opelopab2 5484 rbropapd 5505 poeq12d 5532 soeq12d 5550 freq12d 5588 seeq12d 5591 weeq12d 5608 ralxpf 5789 feq23 6637 f00 6710 fconstg 6715 f1oeq23 6759 f1o00 6803 fnelfp 7120 fnelnfp 7122 isofrlem 7285 f1oiso 7296 riota1a 7336 cbvmpox 7450 caovord 7568 caovord3 7570 f1oweALT 7915 mpof1o2d 8066 oaordex 8484 oaass 8487 odi 8505 findcard2s 9091 unfilem1 9206 tfsnfin2 9264 suppeqfsuppbi 9283 oieu 9445 r1pw 9761 carddomi2 9886 isacn 9958 djudom2 10098 axdc2 10363 alephval2 10487 distrlem4pr 10941 axpre-sup 11084 nn0ind-raph 12621 elpq 12917 xnn0xadd0 13191 elfz 13459 elfzp12 13549 expeq0 14046 leiso 14413 wrd2ind 14677 trcleq12lem 14947 dfrtrclrec2 15012 shftfib 15026 absdvdsb 16235 dvdsabsb 16236 dvdsabseq 16274 unbenlem 16871 isprs 18254 isdrs 18259 pltval 18288 lublecllem 18316 istos 18374 isdlat 18480 znfld 21536 tgss2 22971 isopn2 23016 cnpf2 23234 lmbr 23242 isreg2 23361 fclsrest 24008 qustgplem 24105 ustuqtoplem 24223 xmetec 24418 nmogelb 24700 metdstri 24836 tcphcph 25223 ulmval 26364 2lgslem1a 27373 elmade 27868 bdayle 27927 iscgrg 28599 istrlson 29792 ispthson 29829 isspthson 29830 elwwlks2on 30048 eupth2lem1 30307 eigrei 31924 eigorthi 31927 jplem1 32358 superpos 32444 chrelati 32454 br8d 32701 ellpi 33457 issiga 34305 eulerpartlemgvv 34569 cplgredgex 35358 acycgrcycl 35384 br8 35993 br6 35994 br4 35995 brsegle 36345 topfne 36591 tailfb 36614 filnetlem1 36615 nndivsub 36694 bj-rest10 37455 isbasisrelowllem1 37726 isbasisrelowllem2 37727 fvineqsnf1 37781 wl-2sb6d 37938 curf 37974 curunc 37978 poimirlem26 38022 mblfinlem2 38034 cnambfre 38044 itgaddnclem2 38055 ftc1anclem1 38069 grpokerinj 38269 rngoisoval 38353 smprngopr 38428 parteq12 39255 ax12eq 39442 ax12el 39443 2llnjN 40068 2lplnj 40121 elpadd0 40310 lauteq 40596 lpolconN 41988 rexrabdioph 43248 tfsnfin 43806 eliunov2 44132 nzss 44770 iotasbc2 44873 or2expropbilem2 47504 elsetpreimafvbi 47874 reuopreuprim 48009 grlicref 48511 cbvmpox2 48835 naryfvalel 49129 line2x 49253 brab2ddw 49327 brab2ddw2 49328 |
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