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Mirrors > Home > MPE Home > Th. List > mp2an | Structured version Visualization version GIF version |
Description: An inference based on modus ponens. (Contributed by NM, 13-Apr-1995.) |
Ref | Expression |
---|---|
mp2an.1 | ⊢ 𝜑 |
mp2an.2 | ⊢ 𝜓 |
mp2an.3 | ⊢ ((𝜑 ∧ 𝜓) → 𝜒) |
Ref | Expression |
---|---|
mp2an | ⊢ 𝜒 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | mp2an.2 | . 2 ⊢ 𝜓 | |
2 | mp2an.1 | . . 3 ⊢ 𝜑 | |
3 | mp2an.3 | . . 3 ⊢ ((𝜑 ∧ 𝜓) → 𝜒) | |
4 | 2, 3 | mpan 690 | . 2 ⊢ (𝜓 → 𝜒) |
5 | 1, 4 | ax-mp 5 | 1 ⊢ 𝜒 |
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