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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 718 | . 2 ⊢ (𝜑 → (𝜓 ∨ 𝜑)) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ (𝜓 ∨ 𝜑) |
| Colors of variables: wff set class |
| Syntax hints: ∨ wo 715 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-io 716 |
| This theorem depends on definitions: df-bi 117 |
| This theorem is referenced by: falortru 1451 sucidg 4513 finexdc 7092 elssdc 7094 finomni 7339 indpi 7562 1ap0 8770 iap0 9367 pnf0xnn0 9472 bcn1 11021 sum0 11951 prod0 12148 odd2np1lem 12435 lcm0val 12639 usgrexmpldifpr 16103 ex-or 16335 dcapnconst 16686 |
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