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| Mirrors > Home > ILE Home > Th. List > olci | GIF version | ||
| Description: Deduction introducing a disjunct. (Contributed by NM, 19-Jan-2008.) (Revised by Mario Carneiro, 31-Jan-2015.) |
| Ref | Expression |
|---|---|
| orci.1 | ⊢ 𝜑 |
| Ref | Expression |
|---|---|
| olci | ⊢ (𝜓 ∨ 𝜑) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | orci.1 | . 2 ⊢ 𝜑 | |
| 2 | olc 716 | . 2 ⊢ (𝜑 → (𝜓 ∨ 𝜑)) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ (𝜓 ∨ 𝜑) |
| Colors of variables: wff set class |
| Syntax hints: ∨ wo 713 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-io 714 |
| This theorem depends on definitions: df-bi 117 |
| This theorem is referenced by: falortru 1449 sucidg 4511 finexdc 7087 elssdc 7089 finomni 7333 indpi 7555 1ap0 8763 iap0 9360 pnf0xnn0 9465 bcn1 11013 sum0 11942 prod0 12139 odd2np1lem 12426 lcm0val 12630 usgrexmpldifpr 16093 ex-or 16268 dcapnconst 16615 |
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