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Mirrors > Home > MPE Home > Th. List > simplbda | Structured version Visualization version GIF version |
Description: Deduction eliminating a conjunct. (Contributed by NM, 22-Oct-2007.) |
Ref | Expression |
---|---|
pm3.26bda.1 | ⊢ (𝜑 → (𝜓 ↔ (𝜒 ∧ 𝜃))) |
Ref | Expression |
---|---|
simplbda | ⊢ ((𝜑 ∧ 𝜓) → 𝜃) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | pm3.26bda.1 | . . 3 ⊢ (𝜑 → (𝜓 ↔ (𝜒 ∧ 𝜃))) | |
2 | 1 | biimpa 476 | . 2 ⊢ ((𝜑 ∧ 𝜓) → (𝜒 ∧ 𝜃)) |
3 | 2 | simprd 495 | 1 ⊢ ((𝜑 ∧ 𝜓) → 𝜃) |
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