Description: A number divided by 1 is itself. (Contributed by NM, 9-Jan-2002)
Ref | Expression | ||
---|---|---|---|
Hypothesis | divclz.1 | |- A e. CC |
|
Assertion | div1i | |- ( A / 1 ) = A |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | divclz.1 | |- A e. CC |
|
2 | div1 | |- ( A e. CC -> ( A / 1 ) = A ) |
|
3 | 1 2 | ax-mp | |- ( A / 1 ) = A |