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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 725 | . 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 716 |
| 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 717 |
| This theorem depends on definitions: df-bi 117 |
| This theorem is referenced by: mpjaodan 806 ordi 824 andi 826 dcor 944 ccase 973 mpjao3dan 1344 relop 4886 poltletr 5144 tfrlemisucaccv 6534 tfr1onlemsucaccv 6550 tfrcllemsucaccv 6563 phplem3 7083 ssfilem 7105 ssfilemd 7107 diffitest 7119 pr1or2 7442 reapmul1 8817 apsqgt0 8823 recexaplem2 8874 nnnn0addcl 9474 un0addcl 9477 un0mulcl 9478 elz2 9595 xrltso 10075 xaddnemnf 10136 xaddnepnf 10137 fzsplit2 10330 fzsuc2 10359 elfzp12 10379 seqf1oglem2 10828 expp1 10854 expnegap0 10855 expcllem 10858 mulexpzap 10887 expaddzap 10891 expmulzap 10893 zzlesq 11016 bcpasc 11074 ccatass 11234 ccatrn 11235 ccatswrd 11300 ccatpfx 11331 cats1un 11351 xrltmaxsup 11880 xrmaxaddlem 11883 summodc 12007 fsumsplit 12031 fprodsplitdc 12220 ef0lem 12284 odd2np1 12497 dvdslcm 12704 lcmeq0 12706 lcmcl 12707 lcmneg 12709 lcmgcd 12713 rpexp1i 12789 pcid 12960 4sqlem16 13042 xpsfeq 13491 mulgneg 13790 mulgnn0z 13799 lgsdir2lem4 15833 lgsdir2 15835 lgsdirnn0 15849 lgsdinn0 15850 |
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