Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > 3jaoi | Structured version Visualization version GIF version |
Description: Disjunction of three antecedents (inference). (Contributed by NM, 12-Sep-1995.) |
Ref | Expression |
---|---|
3jaoi.1 | ⊢ (𝜑 → 𝜓) |
3jaoi.2 | ⊢ (𝜒 → 𝜓) |
3jaoi.3 | ⊢ (𝜃 → 𝜓) |
Ref | Expression |
---|---|
3jaoi | ⊢ ((𝜑 ∨ 𝜒 ∨ 𝜃) → 𝜓) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 3jaoi.1 | . . 3 ⊢ (𝜑 → 𝜓) | |
2 | 3jaoi.2 | . . 3 ⊢ (𝜒 → 𝜓) | |
3 | 3jaoi.3 | . . 3 ⊢ (𝜃 → 𝜓) | |
4 | 1, 2, 3 | 3pm3.2i 1232 | . 2 ⊢ ((𝜑 → 𝜓) ∧ (𝜒 → 𝜓) ∧ (𝜃 → 𝜓)) |
5 | 3jao 1381 | . 2 ⊢ (((𝜑 → 𝜓) ∧ (𝜒 → 𝜓) ∧ (𝜃 → 𝜓)) → ((𝜑 ∨ 𝜒 ∨ 𝜃) → 𝜓)) | |
6 | 4, 5 | ax-mp 5 | 1 ⊢ ((𝜑 ∨ 𝜒 ∨ 𝜃) → 𝜓) |
Copyright terms: Public domain | W3C validator |