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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 7545 elni2 7681 prubl 7853 distrlem4prl 7951 distrlem4pru 7952 ltxrlt 8391 recexre 8906 remulext1 8927 mulext1 8940 un0addcl 9596 un0mulcl 9597 elnnz 9654 zleloe 9691 zindd 9764 uzsplit 10499 fzm1 10507 expcl2lemap 10988 expnegzap 11010 expaddzap 11020 expmulzap 11022 qsqeqor 11087 nn0opthd 11160 facdiv 11176 facwordi 11178 bcpasc 11204 recvguniq 11761 absexpzap 11846 maxabslemval 11974 xrmaxiflemval 12016 sumrbdclem 12144 summodc 12150 zsumdc 12151 prodrbdclem 12338 zproddc 12346 prodssdc 12356 fprodcl2lem 12372 fprodsplitsn 12400 ordvdsmul 12601 gcdaddm 12761 nninfctlemfo 12817 lcmdvds 12857 dvdsprime 12900 prmdvdsexpr 12928 prmfac1 12930 pythagtriplem2 13045 4sqlem11 13180 unct 13333 domneq0 14581 gsumfsum 14923 baspartn 15151 reopnap 15647 coseq0q4123 15935 lgsdir2lem2 16148 upgrpredgv 16387 wlk1walkdom 16600 decidin 16825 bj-charfun 16833 bj-nntrans 16977 bj-nnelirr 16979 bj-findis 17005 triap 17078 |
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