Description: Cancel equal divisors in a division. (Contributed by Mario Carneiro, 27-May-2016)
Ref | Expression | ||
---|---|---|---|
Hypotheses | div1d.1 | |
|
divcld.2 | |
||
divmuld.3 | |
||
divmuld.4 | |
||
divdiv23d.5 | |
||
Assertion | divcan7d | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | div1d.1 | |
|
2 | divcld.2 | |
|
3 | divmuld.3 | |
|
4 | divmuld.4 | |
|
5 | divdiv23d.5 | |
|
6 | divcan7 | |
|
7 | 1 2 4 3 5 6 | syl122anc | |