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| Mirrors > Home > ILE Home > Th. List > jaod | GIF version | ||
| Description: Deduction disjoining the antecedents of two implications. (Contributed by NM, 18-Aug-1994.) (Revised by NM, 4-Apr-2013.) |
| Ref | Expression |
|---|---|
| jaod.1 | ⊢ (𝜑 → (𝜓 → 𝜒)) |
| jaod.2 | ⊢ (𝜑 → (𝜃 → 𝜒)) |
| Ref | Expression |
|---|---|
| jaod | ⊢ (𝜑 → ((𝜓 ∨ 𝜃) → 𝜒)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | jaod.1 | . . . 4 ⊢ (𝜑 → (𝜓 → 𝜒)) | |
| 2 | 1 | com12 30 | . . 3 ⊢ (𝜓 → (𝜑 → 𝜒)) |
| 3 | jaod.2 | . . . 4 ⊢ (𝜑 → (𝜃 → 𝜒)) | |
| 4 | 3 | com12 30 | . . 3 ⊢ (𝜃 → (𝜑 → 𝜒)) |
| 5 | 2, 4 | jaoi 728 | . 2 ⊢ ((𝜓 ∨ 𝜃) → (𝜑 → 𝜒)) |
| 6 | 5 | com12 30 | 1 ⊢ (𝜑 → ((𝜓 ∨ 𝜃) → 𝜒)) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 ∨ wo 720 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 721 |
| This proof depends on definitions: df-bi 117 |
| This theorem is used by: mpjaod 730 jaao 731 orel2 738 pm2.621 759 mtord 795 jaodan 809 pm2.63 812 pm2.74 819 dedlema 982 dedlemb 983 oplem1 988 ifnebibdc 3686 opthpr 3897 exmid1stab 4345 trsucss 4568 ordsucim 4647 onsucelsucr 4655 0elnn 4766 xpsspw 4887 relop 4930 fununi 5449 poxp 6468 nntri1 6769 nnsseleq 6774 nnmordi 6789 nnaordex 6801 nnm00 6803 swoord2 6837 nneneq 7158 exmidonfinlem 7546 elni2 7682 prubl 7854 distrlem4prl 7952 distrlem4pru 7953 ltxrlt 8392 recexre 8909 remulext1 8930 mulext1 8943 un0addcl 9601 un0mulcl 9602 elnnz 9659 zleloe 9696 zindd 9769 uzsplit 10510 fzm1 10518 expcl2lemap 11003 expnegzap 11025 expaddzap 11035 expmulzap 11037 qsqeqor 11102 nn0opthd 11176 facdiv 11192 facwordi 11194 bcpasc 11220 recvguniq 11777 absexpzap 11863 maxabslemval 11991 xrmaxiflemval 12035 sumrbdclem 12163 summodc 12169 zsumdc 12170 prodrbdclem 12357 zproddc 12365 prodssdc 12375 fprodcl2lem 12391 fprodsplitsn 12419 ordvdsmul 12620 gcdaddm 12780 nninfctlemfo 12836 lcmdvds 12876 dvdsprime 12919 prmdvdsexpr 12948 prmfac1 12950 pythagtriplem2 13068 4sqlem11 13203 prmlem0 13243 unct 13385 domneq0 14665 gsumfsum 15007 baspartn 15242 reopnap 15738 coseq0q4123 16027 ppiublem1 16252 lgsdir2lem2 16314 upgrpredgv 16553 wlk1walkdom 16766 decidin 16991 bj-charfun 16999 bj-nntrans 17143 bj-nnelirr 17145 bj-findis 17171 triap 17244 |
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