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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 724 | . 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 715 |
| 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 716 |
| This theorem depends on definitions: df-bi 117 |
| This theorem is referenced by: mpjaodan 805 ordi 823 andi 825 dcor 943 ccase 972 mpjao3dan 1343 relop 4880 poltletr 5137 tfrlemisucaccv 6490 tfr1onlemsucaccv 6506 tfrcllemsucaccv 6519 phplem3 7039 ssfilem 7061 ssfilemd 7063 diffitest 7075 pr1or2 7398 reapmul1 8774 apsqgt0 8780 recexaplem2 8831 nnnn0addcl 9431 un0addcl 9434 un0mulcl 9435 elz2 9550 xrltso 10030 xaddnemnf 10091 xaddnepnf 10092 fzsplit2 10284 fzsuc2 10313 elfzp12 10333 seqf1oglem2 10781 expp1 10807 expnegap0 10808 expcllem 10811 mulexpzap 10840 expaddzap 10844 expmulzap 10846 zzlesq 10969 bcpasc 11027 ccatass 11184 ccatrn 11185 ccatswrd 11250 ccatpfx 11281 cats1un 11301 xrltmaxsup 11817 xrmaxaddlem 11820 summodc 11943 fsumsplit 11967 fprodsplitdc 12156 ef0lem 12220 odd2np1 12433 dvdslcm 12640 lcmeq0 12642 lcmcl 12643 lcmneg 12645 lcmgcd 12649 rpexp1i 12725 pcid 12896 4sqlem16 12978 xpsfeq 13427 mulgneg 13726 mulgnn0z 13735 lgsdir2lem4 15759 lgsdir2 15761 lgsdirnn0 15775 lgsdinn0 15776 |
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