Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > idd | Structured version Visualization version GIF version |
Description: Principle of identity id 22 with antecedent. (Contributed by NM, 26-Nov-1995.) |
Ref | Expression |
---|---|
idd | ⊢ (𝜑 → (𝜓 → 𝜓)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | id 22 | . 2 ⊢ (𝜓 → 𝜓) | |
2 | 1 | a1i 11 | 1 ⊢ (𝜑 → (𝜓 → 𝜓)) |
Copyright terms: Public domain | W3C validator |