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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 483 | . 2 ⊢ ((𝜑 ∧ 𝜃) → (𝜓 ↔ 𝜒)) |
3 | sylan9bb.2 | . . 3 ⊢ (𝜃 → (𝜒 ↔ 𝜏)) | |
4 | 3 | adantl 484 | . 2 ⊢ ((𝜑 ∧ 𝜃) → (𝜒 ↔ 𝜏)) |
5 | 2, 4 | bitrd 281 | 1 ⊢ ((𝜑 ∧ 𝜃) → (𝜓 ↔ 𝜏)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 208 ∧ wa 398 |
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 209 df-an 399 |
This theorem is referenced by: sylan9bbr 513 baibd 542 syl3an9b 1430 nanbi12 1493 sbcom2 2168 2sb5rf 2496 2sb6rf 2497 eqeq12 2835 eleq12 2902 sbhypf 3552 ceqsrex2v 3651 vtocl2dOLD 3931 sseq12 3994 csbie2df 4392 2ralsng 4616 rexprgf 4631 rextpg 4635 breq12 5071 reusv2lem5 5303 opelopabg 5425 brabg 5426 opelopabgf 5427 opelopab2 5428 rbropapd 5449 ralxpf 5717 feq23 6498 f00 6561 fconstg 6566 f1oeq23 6607 f1o00 6649 fnelfp 6937 fnelnfp 6939 isofrlem 7093 f1oiso 7104 riota1a 7136 cbvmpox 7247 caovord 7359 caovord3 7361 f1oweALT 7673 oaordex 8184 oaass 8187 odi 8205 findcard2s 8759 unfilem1 8782 suppeqfsuppbi 8847 oieu 9003 r1pw 9274 carddomi2 9399 isacn 9470 djudom2 9609 axdc2 9871 alephval2 9994 fpwwe2cbv 10052 fpwwe2lem2 10054 fpwwecbv 10066 fpwwelem 10067 canthwelem 10072 canthwe 10073 distrlem4pr 10448 axpre-sup 10591 nn0ind-raph 12083 elpq 12375 xnn0xadd0 12641 elfz 12899 elfzp12 12987 expeq0 13460 leiso 13818 wrd2ind 14085 trcleq12lem 14353 dfrtrclrec2 14416 shftfib 14431 absdvdsb 15628 dvdsabsb 15629 dvdsabseq 15663 unbenlem 16244 isprs 17540 isdrs 17544 pltval 17570 lublecllem 17598 istos 17645 isdlat 17803 znfld 20707 tgss2 21595 isopn2 21640 cnpf2 21858 lmbr 21866 isreg2 21985 fclsrest 22632 qustgplem 22729 ustuqtoplem 22848 xmetec 23044 nmogelb 23325 metdstri 23459 tcphcph 23840 ulmval 24968 2lgslem1a 25967 iscgrg 26298 istrlson 27488 ispthson 27523 isspthson 27524 elwwlks2on 27738 eupth2lem1 27997 eigrei 29611 eigorthi 29614 jplem1 30045 superpos 30131 chrelati 30141 br8d 30361 issiga 31371 eulerpartlemgvv 31634 cplgredgex 32367 acycgrcycl 32394 br8 32992 br6 32993 br4 32994 brsegle 33569 topfne 33702 tailfb 33725 filnetlem1 33726 nndivsub 33805 bj-elequ12 34012 bj-rest10 34382 isbasisrelowllem1 34639 isbasisrelowllem2 34640 fvineqsnf1 34694 wl-2sb6d 34809 curf 34885 curunc 34889 poimirlem26 34933 mblfinlem2 34945 cnambfre 34955 itgaddnclem2 34966 ftc1anclem1 34982 grpokerinj 35186 rngoisoval 35270 smprngopr 35345 ax12eq 36092 ax12el 36093 2llnjN 36718 2lplnj 36771 elpadd0 36960 lauteq 37246 lpolconN 38638 rexrabdioph 39411 eliunov2 40044 nzss 40669 iotasbc2 40772 or2expropbilem2 43288 elsetpreimafvbi 43571 reuopreuprim 43708 cbvmpox2 44404 line2x 44761 |
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