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Mirrors > Home > ILE Home > Th. List > expcom | GIF version |
Description: Exportation inference with commuted antecedents. (Contributed by NM, 25-May-2005.) |
Ref | Expression |
---|---|
exp.1 | ⊢ ((𝜑 ∧ 𝜓) → 𝜒) |
Ref | Expression |
---|---|
expcom | ⊢ (𝜓 → (𝜑 → 𝜒)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | exp.1 | . . 3 ⊢ ((𝜑 ∧ 𝜓) → 𝜒) | |
2 | 1 | ex 114 | . 2 ⊢ (𝜑 → (𝜓 → 𝜒)) |
3 | 2 | com12 30 | 1 ⊢ (𝜓 → (𝜑 → 𝜒)) |
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