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| Mirrors > Home > ILE Home > Th. List > jaodan | GIF version | ||
| Description: Deduction disjoining the antecedents of two implications. (Contributed by NM, 14-Oct-2005.) |
| Ref | Expression |
|---|---|
| jaodan.1 | ⊢ ((𝜑 ∧ 𝜓) → 𝜒) |
| jaodan.2 | ⊢ ((𝜑 ∧ 𝜃) → 𝜒) |
| Ref | Expression |
|---|---|
| jaodan | ⊢ ((𝜑 ∧ (𝜓 ∨ 𝜃)) → 𝜒) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | jaodan.1 | . . . 4 ⊢ ((𝜑 ∧ 𝜓) → 𝜒) | |
| 2 | 1 | ex 115 | . . 3 ⊢ (𝜑 → (𝜓 → 𝜒)) |
| 3 | jaodan.2 | . . . 4 ⊢ ((𝜑 ∧ 𝜃) → 𝜒) | |
| 4 | 3 | ex 115 | . . 3 ⊢ (𝜑 → (𝜃 → 𝜒)) |
| 5 | 2, 4 | jaod 722 | . 2 ⊢ (𝜑 → ((𝜓 ∨ 𝜃) → 𝜒)) |
| 6 | 5 | imp 124 | 1 ⊢ ((𝜑 ∧ (𝜓 ∨ 𝜃)) → 𝜒) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 ∨ wo 713 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 714 |
| This theorem depends on definitions: df-bi 117 |
| This theorem is referenced by: mpjaodan 803 ordi 821 andi 823 dcor 941 ccase 970 mpjao3dan 1341 relop 4872 poltletr 5129 tfrlemisucaccv 6477 tfr1onlemsucaccv 6493 tfrcllemsucaccv 6506 phplem3 7023 ssfilem 7045 diffitest 7057 pr1or2 7378 reapmul1 8753 apsqgt0 8759 recexaplem2 8810 nnnn0addcl 9410 un0addcl 9413 un0mulcl 9414 elz2 9529 xrltso 10004 xaddnemnf 10065 xaddnepnf 10066 fzsplit2 10258 fzsuc2 10287 elfzp12 10307 seqf1oglem2 10754 expp1 10780 expnegap0 10781 expcllem 10784 mulexpzap 10813 expaddzap 10817 expmulzap 10819 zzlesq 10942 bcpasc 11000 ccatass 11156 ccatrn 11157 ccatswrd 11217 ccatpfx 11248 cats1un 11268 xrltmaxsup 11783 xrmaxaddlem 11786 summodc 11909 fsumsplit 11933 fprodsplitdc 12122 ef0lem 12186 odd2np1 12399 dvdslcm 12606 lcmeq0 12608 lcmcl 12609 lcmneg 12611 lcmgcd 12615 rpexp1i 12691 pcid 12862 4sqlem16 12944 xpsfeq 13393 mulgneg 13692 mulgnn0z 13701 lgsdir2lem4 15725 lgsdir2 15727 lgsdirnn0 15741 lgsdinn0 15742 |
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