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| Mirrors > Home > MPE Home > Th. List > pm5.32da | Structured version Visualization version GIF version | ||
| Description: Distribution of implication over biconditional (deduction form). (Contributed by NM, 9-Dec-2006.) |
| Ref | Expression |
|---|---|
| pm5.32da.1 | ⊢ ((𝜑 ∧ 𝜓) → (𝜒 ↔ 𝜃)) |
| Ref | Expression |
|---|---|
| pm5.32da | ⊢ (𝜑 → ((𝜓 ∧ 𝜒) ↔ (𝜓 ∧ 𝜃))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | pm5.32da.1 | . . 3 ⊢ ((𝜑 ∧ 𝜓) → (𝜒 ↔ 𝜃)) | |
| 2 | 1 | ex 412 | . 2 ⊢ (𝜑 → (𝜓 → (𝜒 ↔ 𝜃))) |
| 3 | 2 | pm5.32d 577 | 1 ⊢ (𝜑 → ((𝜓 ∧ 𝜒) ↔ (𝜓 ∧ 𝜃))) |
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