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| Mirrors > Home > ILE Home > Th. List > mpjaod | GIF version | ||
| Description: Eliminate a disjunction in a deduction. (Contributed by Mario Carneiro, 29-May-2016.) |
| Ref | Expression |
|---|---|
| jaod.1 | ⊢ (𝜑 → (𝜓 → 𝜒)) |
| jaod.2 | ⊢ (𝜑 → (𝜃 → 𝜒)) |
| jaod.3 | ⊢ (𝜑 → (𝜓 ∨ 𝜃)) |
| Ref | Expression |
|---|---|
| mpjaod | ⊢ (𝜑 → 𝜒) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | jaod.3 | . 2 ⊢ (𝜑 → (𝜓 ∨ 𝜃)) | |
| 2 | jaod.1 | . . 3 ⊢ (𝜑 → (𝜓 → 𝜒)) | |
| 3 | jaod.2 | . . 3 ⊢ (𝜑 → (𝜃 → 𝜒)) | |
| 4 | 2, 3 | jaod 729 | . 2 ⊢ (𝜑 → ((𝜓 ∨ 𝜃) → 𝜒)) |
| 5 | 1, 4 | mpd 13 | 1 ⊢ (𝜑 → 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: ifbothdc 3675 opth1 4376 onsucelsucexmidlem 4676 reldmtpos 6524 dftpos4 6534 nnm00 6803 xpfi 7239 omp1eomlem 7434 ctmlemr 7448 ctssdclemn0 7450 finomni 7480 indpi 7709 enq0tr 7801 prarloclem3step 7863 distrlem4prl 7951 distrlem4pru 7952 lelttr 8414 nn1suc 9324 nnsub 9344 nn0lt2 9729 uzin 9957 xrlelttr 10210 xlesubadd 10287 fzfig 10869 seq3id 10964 seq3z 10967 faclbnd 11181 facavg 11186 bcval5 11203 hashfzo 11265 swrdccat3blem 11513 iserex 12107 fsum3cvg 12147 fsumf1o 12159 fisumss 12161 fsumcl2lem 12167 fsumadd 12175 fsummulc2 12217 isumsplit 12260 fprodf1o 12357 prodssdc 12358 fprodssdc 12359 fprodmul 12360 absdvdsb 12578 dvdsabsb 12579 dvdsabseq 12616 m1exp1 12670 flodddiv4 12705 gcdaddm 12763 gcdabs1 12768 lcmdvds 12859 prmind2 12900 rpexp 12933 fermltl 13014 pcxnn0cl 13091 pcxcl 13092 pcabs 13107 pcmpt 13124 pockthg 13138 mulgnn0ass 13963 lgseisenlem2 16202 2lgslem1c 16221 trilpolemcl 17098 trilpolemlt1 17102 |
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