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| Description: Deduce implication from disjunction. |
| Ref | Expression |
|---|---|
| orrd.1 |
|
| Ref | Expression |
|---|---|
| orrd |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | orrd.1 |
. 2
| |
| 2 | df-or 241 |
. 2
| |
| 3 | 1, 2 | sylibr 217 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: olc 290 orc 291 pm5.63 373 ordi 656 dn1OLD 856 sspss 2707 pwpw0 3134 sssn 3142 sspr 3144 pwsnALT 3173 unissint 3241 pwssun 3578 ordsseleqOLD 3688 ordtri2or 3766 unizlim 3786 orduniorsuc 3909 ordzsl 3927 tfindsOLD 3943 nn0suc 3976 xpexr 4352 fvclss 4831 odi 5258 entric 5990 iscard3 6036 psslinpr 6287 lttri4OLD 6685 ssxr 6714 ssxrOLD 6715 xrletri 6736 letric 6802 letricOLD 6803 mul0ori 6882 avgle 7231 supxrgtmnf 7301 zeo 7411 icounlem 7581 ioojoin 7585 sq01 7897 fctop 8920 cctop 8922 clslp 9024 lmfexlem1 9234 metelcls 9243 nvmul0or 9604 hvmul0or 10526 atomli 11954 atordi 11956 nepss 13820 dfon2lem6 13854 soseq 13955 nxtor 14312 fixpc 14418 subntr 15425 alexsublem3 15439 ufprim 15569 filssufillem 15570 uffixfr 15575 fixufil 15576 filcon 15580 uzm1 15784 fzm1 15796 pm10.57 16318 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 |
| This theorem depends on definitions: df-bi 164 df-or 241 |