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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 484 | . 2 ⊢ ((𝜑 ∧ 𝜃) → (𝜓 ↔ 𝜒)) |
3 | sylan9bb.2 | . . 3 ⊢ (𝜃 → (𝜒 ↔ 𝜏)) | |
4 | 3 | adantl 485 | . 2 ⊢ ((𝜑 ∧ 𝜃) → (𝜒 ↔ 𝜏)) |
5 | 2, 4 | bitrd 282 | 1 ⊢ ((𝜑 ∧ 𝜃) → (𝜓 ↔ 𝜏)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 209 ∧ wa 399 |
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 210 df-an 400 |
This theorem is referenced by: sylan9bbr 514 baibd 543 syl3an9b 1431 nanbi12 1494 sbcom2 2165 2sb5rf 2485 2sb6rf 2486 eqeq12 2812 eleq12 2879 sbhypf 3500 ceqsrex2v 3599 vtocl2dOLD 3876 sseq12 3942 csbie2df 4348 2ralsng 4576 rexprgf 4591 rextpg 4595 breq12 5035 reusv2lem5 5268 opelopabg 5390 brabg 5391 opelopabgf 5392 opelopab2 5393 rbropapd 5414 ralxpf 5681 feq23 6471 f00 6535 fconstg 6540 f1oeq23 6582 f1o00 6624 fnelfp 6914 fnelnfp 6916 isofrlem 7072 f1oiso 7083 riota1a 7115 cbvmpox 7226 caovord 7339 caovord3 7341 f1oweALT 7655 oaordex 8167 oaass 8170 odi 8188 findcard2s 8743 unfilem1 8766 suppeqfsuppbi 8831 oieu 8987 r1pw 9258 carddomi2 9383 isacn 9455 djudom2 9594 axdc2 9860 alephval2 9983 fpwwe2cbv 10041 fpwwe2lem2 10043 fpwwecbv 10055 fpwwelem 10056 canthwelem 10061 canthwe 10062 distrlem4pr 10437 axpre-sup 10580 nn0ind-raph 12070 elpq 12362 xnn0xadd0 12628 elfz 12891 elfzp12 12981 expeq0 13455 leiso 13813 wrd2ind 14076 trcleq12lem 14344 dfrtrclrec2 14409 shftfib 14423 absdvdsb 15620 dvdsabsb 15621 dvdsabseq 15655 unbenlem 16234 isprs 17532 isdrs 17536 pltval 17562 lublecllem 17590 istos 17637 isdlat 17795 znfld 20252 tgss2 21592 isopn2 21637 cnpf2 21855 lmbr 21863 isreg2 21982 fclsrest 22629 qustgplem 22726 ustuqtoplem 22845 xmetec 23041 nmogelb 23322 metdstri 23456 tcphcph 23841 ulmval 24975 2lgslem1a 25975 iscgrg 26306 istrlson 27496 ispthson 27531 isspthson 27532 elwwlks2on 27745 eupth2lem1 28003 eigrei 29617 eigorthi 29620 jplem1 30051 superpos 30137 chrelati 30147 br8d 30374 issiga 31481 eulerpartlemgvv 31744 cplgredgex 32480 acycgrcycl 32507 br8 33105 br6 33106 br4 33107 brsegle 33682 topfne 33815 tailfb 33838 filnetlem1 33839 nndivsub 33918 bj-elequ12 34125 bj-rest10 34503 isbasisrelowllem1 34772 isbasisrelowllem2 34773 fvineqsnf1 34827 wl-2sb6d 34959 curf 35035 curunc 35039 poimirlem26 35083 mblfinlem2 35095 cnambfre 35105 itgaddnclem2 35116 ftc1anclem1 35130 grpokerinj 35331 rngoisoval 35415 smprngopr 35490 ax12eq 36237 ax12el 36238 2llnjN 36863 2lplnj 36916 elpadd0 37105 lauteq 37391 lpolconN 38783 rexrabdioph 39735 eliunov2 40380 nzss 41021 iotasbc2 41124 or2expropbilem2 43625 elsetpreimafvbi 43908 reuopreuprim 44043 cbvmpox2 44737 naryfvalel 45044 line2x 45168 |
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