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Mirrors > Home > MPE Home > Th. List > orrd | Structured version Visualization version GIF version |
Description: Deduce disjunction from implication. (Contributed by NM, 27-Nov-1995.) |
Ref | Expression |
---|---|
orrd.1 | ⊢ (𝜑 → (¬ 𝜓 → 𝜒)) |
Ref | Expression |
---|---|
orrd | ⊢ (𝜑 → (𝜓 ∨ 𝜒)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | orrd.1 | . 2 ⊢ (𝜑 → (¬ 𝜓 → 𝜒)) | |
2 | pm2.54 388 | . 2 ⊢ ((¬ 𝜓 → 𝜒) → (𝜓 ∨ 𝜒)) | |
3 | 1, 2 | syl 17 | 1 ⊢ (𝜑 → (𝜓 ∨ 𝜒)) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ∨ wo 382 |
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 196 df-or 384 |
This theorem is referenced by: olc 398 orc 399 pm2.68 425 pm4.79 605 19.30 1798 axi12 2588 axbnd 2589 sspss 3668 eqoreldif 4172 pwpw0 4284 sssn 4298 pwsnALT 4367 unissint 4436 disjxiun 4579 disjxiunOLD 4580 otsndisj 4904 otiunsndisj 4905 pwssun 4944 isso2i 4991 ordtr3 5686 ordtr3OLD 5687 ordtri2or 5739 unizlim 5761 fvclss 6404 orduniorsuc 6922 ordzsl 6937 nn0suc 6982 xpexr 6999 odi 7546 swoso 7662 erdisj 7681 ordtypelem7 8312 wemapsolem 8338 domwdom 8362 iscard3 8799 ackbij1lem18 8942 fin56 9098 entric 9258 gchdomtri 9330 inttsk 9475 r1tskina 9483 psslinpr 9732 ssxr 9986 letric 10016 mul0or 10546 mulge0b 10772 zeo 11339 uzm1 11594 xrletri 11860 supxrgtmnf 12031 sq01 12848 ruclem3 14801 prm2orodd 15242 phiprmpw 15319 pleval2i 16787 irredn0 18526 drngmul0or 18591 lvecvs0or 18929 lssvs0or 18931 lspsnat 18966 lsppratlem1 18968 domnchr 19699 fctop 20618 cctop 20620 ppttop 20621 clslp 20762 restntr 20796 cnconn 21035 txindis 21247 txcon 21302 isufil2 21522 ufprim 21523 alexsubALTlem3 21663 pmltpc 23026 iundisj2 23124 limcco 23463 fta1b 23733 aalioulem2 23892 abelthlem2 23990 logreclem 24300 dchrfi 24780 2sqb 24957 tgbtwnconn1 25270 legov3 25293 coltr 25342 colline 25344 tglowdim2ln 25346 ragflat3 25401 ragperp 25412 lmieu 25476 lmicom 25480 lmimid 25486 nvmul0or 26889 hvmul0or 27266 atomli 28625 atordi 28627 iundisj2f 28785 iundisj2fi 28943 signsply0 29954 cvmsdisj 30506 nepss 30854 dfon2lem6 30937 soseq 30995 btwnconn1lem13 31376 wl-exeq 32500 lsator0sp 33306 lkreqN 33475 2at0mat0 33829 trlator0 34476 dochkrshp4 35696 dochsat0 35764 lcfl6 35807 rp-fakeimass 36876 frege124d 37072 clsk1independent 37364 pm10.57 37592 icccncfext 38773 fourierdlem70 39069 uzlidlring 41719 nneop 42114 |
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