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| Mirrors > Home > ILE Home > Th. List > mp3an | GIF version | ||
| Description: An inference based on modus ponens. (Contributed by NM, 14-May-1999.) | 
| Ref | Expression | 
|---|---|
| mp3an.1 | ⊢ 𝜑 | 
| mp3an.2 | ⊢ 𝜓 | 
| mp3an.3 | ⊢ 𝜒 | 
| mp3an.4 | ⊢ ((𝜑 ∧ 𝜓 ∧ 𝜒) → 𝜃) | 
| Ref | Expression | 
|---|---|
| mp3an | ⊢ 𝜃 | 
| Step | Hyp | Ref | Expression | 
|---|---|---|---|
| 1 | mp3an.2 | . 2 ⊢ 𝜓 | |
| 2 | mp3an.3 | . 2 ⊢ 𝜒 | |
| 3 | mp3an.1 | . . 3 ⊢ 𝜑 | |
| 4 | mp3an.4 | . . 3 ⊢ ((𝜑 ∧ 𝜓 ∧ 𝜒) → 𝜃) | |
| 5 | 3, 4 | mp3an1 1335 | . 2 ⊢ ((𝜓 ∧ 𝜒) → 𝜃) | 
| 6 | 1, 2, 5 | mp2an 426 | 1 ⊢ 𝜃 | 
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