Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > mp2 | Structured version Visualization version GIF version |
Description: A double modus ponens inference. (Contributed by NM, 5-Apr-1994.) |
Ref | Expression |
---|---|
mp2.1 | ⊢ 𝜑 |
mp2.2 | ⊢ 𝜓 |
mp2.3 | ⊢ (𝜑 → (𝜓 → 𝜒)) |
Ref | Expression |
---|---|
mp2 | ⊢ 𝜒 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | mp2.2 | . 2 ⊢ 𝜓 | |
2 | mp2.1 | . . 3 ⊢ 𝜑 | |
3 | mp2.3 | . . 3 ⊢ (𝜑 → (𝜓 → 𝜒)) | |
4 | 2, 3 | ax-mp 5 | . 2 ⊢ (𝜓 → 𝜒) |
5 | 1, 4 | ax-mp 5 | 1 ⊢ 𝜒 |
Copyright terms: Public domain | W3C validator |