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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 4910 poltletr 5168 tfrlemisucaccv 6569 tfr1onlemsucaccv 6585 tfrcllemsucaccv 6598 phplem3 7121 ssfilem 7143 ssfilemd 7145 diffitest 7157 pr1or2 7504 reapmul1 8886 apsqgt0 8892 recexaplem2 8943 nnnn0addcl 9543 un0addcl 9546 un0mulcl 9547 elz2 9666 xrltso 10148 xaddnemnf 10209 xaddnepnf 10210 fzsplit2 10404 fzsplit3 10407 fzsuc2 10435 elfzp12 10455 seqf1oglem2 10906 expp1 10932 expnegap0 10933 expcllem 10936 mulexpzap 10965 expaddzap 10969 expmulzap 10971 zzlesq 11095 bcpasc 11153 ccatass 11321 ccatrn 11322 ccatswrd 11387 ccatpfx 11418 cats1un 11438 xrltmaxsup 11967 xrmaxaddlem 11970 summodc 12094 fsumsplit 12118 fprodsplitdc 12307 ef0lem 12371 odd2np1 12584 dvdslcm 12791 lcmeq0 12793 lcmcl 12794 lcmneg 12796 lcmgcd 12800 rpexp1i 12876 pcid 13047 4sqlem16 13129 xpsfeq 13609 mulgneg 13893 mulgnn0z 13902 lgsdir2lem4 16030 lgsdir2 16032 lgsdirnn0 16046 lgsdinn0 16047 |
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