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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 2837 eleq12 2904 sbhypf 3554 ceqsrex2v 3653 vtocl2dOLD 3933 sseq12 3996 csbie2df 4394 2ralsng 4618 rexprgf 4633 rextpg 4637 breq12 5073 reusv2lem5 5305 opelopabg 5427 brabg 5428 opelopabgf 5429 opelopab2 5430 rbropapd 5451 ralxpf 5719 feq23 6500 f00 6563 fconstg 6568 f1oeq23 6609 f1o00 6651 fnelfp 6939 fnelnfp 6941 isofrlem 7095 f1oiso 7106 riota1a 7138 cbvmpox 7249 caovord 7361 caovord3 7363 f1oweALT 7675 oaordex 8186 oaass 8189 odi 8207 findcard2s 8761 unfilem1 8784 suppeqfsuppbi 8849 oieu 9005 r1pw 9276 carddomi2 9401 isacn 9472 djudom2 9611 axdc2 9873 alephval2 9996 fpwwe2cbv 10054 fpwwe2lem2 10056 fpwwecbv 10068 fpwwelem 10069 canthwelem 10074 canthwe 10075 distrlem4pr 10450 axpre-sup 10593 nn0ind-raph 12085 elpq 12377 xnn0xadd0 12643 elfz 12901 elfzp12 12989 expeq0 13462 leiso 13820 wrd2ind 14087 trcleq12lem 14355 dfrtrclrec2 14418 shftfib 14433 absdvdsb 15630 dvdsabsb 15631 dvdsabseq 15665 unbenlem 16246 isprs 17542 isdrs 17546 pltval 17572 lublecllem 17600 istos 17647 isdlat 17805 znfld 20709 tgss2 21597 isopn2 21642 cnpf2 21860 lmbr 21868 isreg2 21987 fclsrest 22634 qustgplem 22731 ustuqtoplem 22850 xmetec 23046 nmogelb 23327 metdstri 23461 tcphcph 23842 ulmval 24970 2lgslem1a 25969 iscgrg 26300 istrlson 27490 ispthson 27525 isspthson 27526 elwwlks2on 27740 eupth2lem1 27999 eigrei 29613 eigorthi 29616 jplem1 30047 superpos 30133 chrelati 30143 br8d 30363 issiga 31373 eulerpartlemgvv 31636 cplgredgex 32369 acycgrcycl 32396 br8 32994 br6 32995 br4 32996 brsegle 33571 topfne 33704 tailfb 33727 filnetlem1 33728 nndivsub 33807 bj-elequ12 34014 bj-rest10 34381 isbasisrelowllem1 34638 isbasisrelowllem2 34639 fvineqsnf1 34693 wl-2sb6d 34796 curf 34872 curunc 34876 poimirlem26 34920 mblfinlem2 34932 cnambfre 34942 itgaddnclem2 34953 ftc1anclem1 34969 grpokerinj 35173 rngoisoval 35257 smprngopr 35332 ax12eq 36079 ax12el 36080 2llnjN 36705 2lplnj 36758 elpadd0 36947 lauteq 37233 lpolconN 38625 rexrabdioph 39398 eliunov2 40031 nzss 40656 iotasbc2 40759 or2expropbilem2 43275 elsetpreimafvbi 43558 reuopreuprim 43695 cbvmpox2 44391 line2x 44748 |
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