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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 4905 poltletr 5163 tfrlemisucaccv 6556 tfr1onlemsucaccv 6572 tfrcllemsucaccv 6585 phplem3 7108 ssfilem 7130 ssfilemd 7132 diffitest 7144 pr1or2 7491 reapmul1 8869 apsqgt0 8875 recexaplem2 8926 nnnn0addcl 9526 un0addcl 9529 un0mulcl 9530 elz2 9649 xrltso 10129 xaddnemnf 10190 xaddnepnf 10191 fzsplit2 10384 fzsuc2 10413 elfzp12 10433 seqf1oglem2 10882 expp1 10908 expnegap0 10909 expcllem 10912 mulexpzap 10941 expaddzap 10945 expmulzap 10947 zzlesq 11070 bcpasc 11128 ccatass 11294 ccatrn 11295 ccatswrd 11360 ccatpfx 11391 cats1un 11411 xrltmaxsup 11940 xrmaxaddlem 11943 summodc 12067 fsumsplit 12091 fprodsplitdc 12280 ef0lem 12344 odd2np1 12557 dvdslcm 12764 lcmeq0 12766 lcmcl 12767 lcmneg 12769 lcmgcd 12773 rpexp1i 12849 pcid 13020 4sqlem16 13102 xpsfeq 13556 mulgneg 13855 mulgnn0z 13864 lgsdir2lem4 15902 lgsdir2 15904 lgsdirnn0 15918 lgsdinn0 15919 |
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