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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 278 | 1 ⊢ ((𝜑 ∧ 𝜃) → (𝜓 ↔ 𝜏)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∧ 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 206 df-an 397 |
This theorem is referenced by: sylan9bbr 511 baibd 540 syl3an9b 1434 nanbi12 1501 sbcom2 2161 2sb5rf 2470 2sb6rf 2471 eqeqan12d 2745 eqeq12OLD 2750 eleq12 2822 sbhypfOLD 3536 ceqsrex2v 3642 elabd2 3656 sseq12 4005 csbie2df 4436 2ralsng 4673 rexprgf 4690 rextpg 4696 breq12 5146 reusv2lem5 5393 opelopabg 5531 brabg 5532 opelopabgf 5533 opelopab2 5534 rbropapd 5557 ralxpf 5838 feq23 6688 f00 6760 fconstg 6765 f1oeq23 6811 f1o00 6855 fnelfp 7157 fnelnfp 7159 isofrlem 7321 f1oiso 7332 riota1a 7372 cbvmpox 7486 caovord 7601 caovord3 7603 f1oweALT 7941 oaordex 8541 oaass 8544 odi 8562 findcard2s 9148 unfilem1 9293 suppeqfsuppbi 9360 oieu 9516 r1pw 9822 carddomi2 9947 isacn 10021 djudom2 10160 axdc2 10426 alephval2 10549 fpwwe2cbv 10607 fpwwe2lem2 10609 fpwwecbv 10621 fpwwelem 10622 canthwelem 10627 canthwe 10628 distrlem4pr 11003 axpre-sup 11146 nn0ind-raph 12644 elpq 12941 xnn0xadd0 13208 elfz 13472 elfzp12 13562 expeq0 14040 leiso 14402 wrd2ind 14655 trcleq12lem 14922 dfrtrclrec2 14987 shftfib 15001 absdvdsb 16200 dvdsabsb 16201 dvdsabseq 16238 unbenlem 16823 isprs 18232 isdrs 18236 pltval 18267 lublecllem 18295 istos 18353 isdlat 18457 znfld 21049 tgss2 22419 isopn2 22465 cnpf2 22683 lmbr 22691 isreg2 22810 fclsrest 23457 qustgplem 23554 ustuqtoplem 23673 xmetec 23869 nmogelb 24162 metdstri 24296 tcphcph 24683 ulmval 25821 2lgslem1a 26821 elmade 27285 iscgrg 27628 istrlson 28829 ispthson 28864 isspthson 28865 elwwlks2on 29078 eupth2lem1 29336 eigrei 30950 eigorthi 30953 jplem1 31384 superpos 31470 chrelati 31480 br8d 31707 issiga 32939 eulerpartlemgvv 33204 cplgredgex 33940 acycgrcycl 33967 br8 34554 br6 34555 br4 34556 brsegle 34908 topfne 35041 tailfb 35064 filnetlem1 35065 nndivsub 35144 bj-elequ12 35358 bj-rest10 35771 isbasisrelowllem1 36038 isbasisrelowllem2 36039 fvineqsnf1 36093 wl-2sb6d 36225 curf 36268 curunc 36272 poimirlem26 36316 mblfinlem2 36328 cnambfre 36338 itgaddnclem2 36349 ftc1anclem1 36363 grpokerinj 36564 rngoisoval 36648 smprngopr 36723 parteq12 37449 ax12eq 37614 ax12el 37615 2llnjN 38241 2lplnj 38294 elpadd0 38483 lauteq 38769 lpolconN 40161 rexrabdioph 41301 tfsnfin 41871 eliunov2 42199 nzss 42845 iotasbc2 42948 or2expropbilem2 45513 elsetpreimafvbi 45829 reuopreuprim 45964 cbvmpox2 46657 naryfvalel 46962 line2x 47086 |
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