Description: The multiplication operation of the ordered power series structure. (Contributed by Mario Carneiro, 8-Feb-2015) (Revised by Mario Carneiro, 30-Aug-2015) (Revised by AV, 1-Nov-2024)
Ref | Expression | ||
---|---|---|---|
Hypotheses | opsrbas.s | |
|
opsrbas.o | |
||
opsrbas.t | |
||
Assertion | opsrmulr | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | opsrbas.s | |
|
2 | opsrbas.o | |
|
3 | opsrbas.t | |
|
4 | mulrid | |
|
5 | plendxnmulrndx | |
|
6 | 5 | necomi | |
7 | 1 2 3 4 6 | opsrbaslem | |