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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 | pm2.54 853 | . 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 848 |
| 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 207 df-or 849 |
| This theorem is referenced by: orc 868 olc 869 pm2.68 901 pm4.79 1006 19.30 1883 axi12 2707 r19.30 3105 sspss 4056 eqoreldif 4644 pwpw0 4771 sssn 4784 unissint 4929 disjiund 5091 disjxiun 5097 otsndisj 5475 otiunsndisj 5476 pwssun 5524 isso2i 5577 ordtr3 6371 ordtri2or 6425 unizlim 6449 fvclss 7197 orduniorsuc 7782 ordzsl 7797 nn0suc 7846 xpexr 7870 soseq 8111 odi 8516 swoso 8680 erdisj 8703 ordtypelem7 9441 wemapsolem 9467 domwdom 9491 iscard3 10015 ackbij1lem18 10158 fin56 10315 entric 10479 gchdomtri 10552 inttsk 10697 r1tskina 10705 psslinpr 10954 1re 11144 ssxr 11214 letric 11245 mul0or 11789 mulge0b 12024 zeo 12590 uzm1 12797 xrletri 13079 supxrgtmnf 13256 sq01 14160 ruclem3 16170 prm2orodd 16630 phiprmpw 16715 pleval2i 18269 chnind 18556 irredn0 20371 drngmul0orOLD 20706 lvecvs0or 21075 lssvs0or 21077 lspsnat 21112 lsppratlem1 21114 domnchr 21499 fctop 22960 cctop 22962 ppttop 22963 clslp 23104 restntr 23138 cnconn 23378 txindis 23590 txconn 23645 isufil2 23864 ufprim 23865 alexsubALTlem3 24005 pmltpc 25419 iundisj2 25518 limcco 25862 fta1b 26145 aalioulem2 26309 abelthlem2 26410 logreclem 26740 dchrfi 27234 2sqb 27411 nosepdmlem 27663 noetasuplem4 27716 lestric 27748 muls0ord 28193 bdayfinbndlem1 28475 tgbtwnconn1 28659 legov3 28682 coltr 28731 colline 28733 tglowdim2ln 28735 ragflat3 28790 ragperp 28801 lmieu 28868 lmicom 28872 lmimid 28878 numedglnl 29229 pthisspthorcycl 29887 nvmul0or 30737 hvmul0or 31112 atomli 32469 atordi 32471 iundisj2f 32676 iundisj2fi 32887 gsumfs2d 33154 mxidlprm 33562 ssmxidl 33566 qsdrng 33589 zarclssn 34050 signsply0 34728 cvmsdisj 35483 nepss 35931 dfon2lem6 35999 btwnconn1lem13 36312 wl-exeq 37786 eqvreldisj 38946 lsator0sp 39374 lkreqN 39543 2at0mat0 39898 trlator0 40544 dochkrshp4 41762 dochsat0 41830 lcfl6 41873 expeqidd 42692 sn-remul0ord 42775 rp-fakeimass 43865 frege124d 44114 clsk1independent 44399 mnringmulrcld 44581 pm10.57 44724 icccncfext 46242 fourierdlem70 46531 ichnreuop 47829 uzlidlring 48592 nneop 48883 mo0sn 49172 euendfunc2 49883 |
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