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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 4378 onsucelsucexmidlem 4678 reldmtpos 6528 dftpos4 6538 nnm00 6807 xpfi 7244 omp1eomlem 7441 ctmlemr 7455 ctssdclemn0 7457 finomni 7487 indpi 7716 enq0tr 7808 prarloclem3step 7870 distrlem4prl 7958 distrlem4pru 7959 lelttr 8421 nn1suc 9333 nnsub 9353 nn0lt2 9739 uzin 9972 xrlelttr 10226 xlesubadd 10303 fzfig 10889 seq3id 10984 seq3z 10987 faclbnd 11202 facavg 11207 bcval5 11224 hashfzo 11286 swrdccat3blem 11534 iserex 12131 fsum3cvg 12171 fsumf1o 12183 fisumss 12185 fsumcl2lem 12191 fsumadd 12199 fsummulc2 12241 isumsplit 12284 fprodf1o 12381 prodssdc 12382 fprodssdc 12383 fprodmul 12384 absdvdsb 12602 dvdsabsb 12603 dvdsabseq 12640 m1exp1 12694 flodddiv4 12729 gcdaddm 12787 gcdabs1 12792 lcmdvds 12883 prmind2 12924 rpexp 12958 fermltl 13042 pcxnn0cl 13119 pcxcl 13120 pcabs 13135 pcmpt 13152 pockthg 13166 prmlem0 13250 prmlem1a 13251 mulgnn0ass 14021 chtublem 16307 bpos1lem 16321 bposlem1 16323 bposlem3 16325 lgseisenlem2 16407 2lgslem1c 16426 trilpolemcl 17305 trilpolemlt1 17309 |
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