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Mirrors > Home > ILE Home > Th. List > pm3.2i | GIF version |
Description: Infer conjunction of premises. (Contributed by NM, 5-Aug-1993.) |
Ref | Expression |
---|---|
pm3.2i.1 | ⊢ 𝜑 |
pm3.2i.2 | ⊢ 𝜓 |
Ref | Expression |
---|---|
pm3.2i | ⊢ (𝜑 ∧ 𝜓) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | pm3.2i.1 | . 2 ⊢ 𝜑 | |
2 | pm3.2i.2 | . 2 ⊢ 𝜓 | |
3 | pm3.2 138 | . 2 ⊢ (𝜑 → (𝜓 → (𝜑 ∧ 𝜓))) | |
4 | 1, 2, 3 | mp2 16 | 1 ⊢ (𝜑 ∧ 𝜓) |
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