Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > f1f | Structured version Visualization version GIF version |
Description: A one-to-one mapping is a mapping. (Contributed by NM, 31-Dec-1996.) |
Ref | Expression |
---|---|
f1f | ⊢ (𝐹:𝐴–1-1→𝐵 → 𝐹:𝐴⟶𝐵) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-f1 6442 | . 2 ⊢ (𝐹:𝐴–1-1→𝐵 ↔ (𝐹:𝐴⟶𝐵 ∧ Fun ◡𝐹)) | |
2 | 1 | simplbi 498 | 1 ⊢ (𝐹:𝐴–1-1→𝐵 → 𝐹:𝐴⟶𝐵) |
Copyright terms: Public domain | W3C validator |