Description: An associative law for division. (Contributed by NM, 15-Feb-1995)
Ref | Expression | ||
---|---|---|---|
Hypotheses | divclz.1 | |
|
divclz.2 | |
||
divmulz.3 | |
||
divass.4 | |
||
Assertion | divassi | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | divclz.1 | |
|
2 | divclz.2 | |
|
3 | divmulz.3 | |
|
4 | divass.4 | |
|
5 | 1 2 3 | divasszi | |
6 | 4 5 | ax-mp | |