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Mirrors > Home > ILE Home > Th. List > 3expia | GIF version |
Description: Exportation from triple conjunction. (Contributed by NM, 19-May-2007.) |
Ref | Expression |
---|---|
3exp.1 | ⊢ ((𝜑 ∧ 𝜓 ∧ 𝜒) → 𝜃) |
Ref | Expression |
---|---|
3expia | ⊢ ((𝜑 ∧ 𝜓) → (𝜒 → 𝜃)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 3exp.1 | . . 3 ⊢ ((𝜑 ∧ 𝜓 ∧ 𝜒) → 𝜃) | |
2 | 1 | 3exp 1192 | . 2 ⊢ (𝜑 → (𝜓 → (𝜒 → 𝜃))) |
3 | 2 | imp 123 | 1 ⊢ ((𝜑 ∧ 𝜓) → (𝜒 → 𝜃)) |
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