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| Mirrors > Home > MPE Home > Th. List > 2a1d | Structured version Visualization version GIF version | ||
| Description: Deduction introducing two antecedents. Two applications of a1d 25. Deduction associated with 2a1 28 and 2a1i 12. (Contributed by BJ, 10-Aug-2020.) |
| Ref | Expression |
|---|---|
| 2a1d.1 | ⊢ (𝜑 → 𝜓) |
| Ref | Expression |
|---|---|
| 2a1d | ⊢ (𝜑 → (𝜒 → (𝜃 → 𝜓))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 2a1d.1 | . . 3 ⊢ (𝜑 → 𝜓) | |
| 2 | 1 | a1d 25 | . 2 ⊢ (𝜑 → (𝜃 → 𝜓)) |
| 3 | 2 | a1d 25 | 1 ⊢ (𝜑 → (𝜒 → (𝜃 → 𝜓))) |
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