Description: Obsolete version of opsrmulr as of 1-Nov-2024. The multiplication operation of the ordered power series structure. (Contributed by Mario Carneiro, 8-Feb-2015) (Revised by Mario Carneiro, 30-Aug-2015) (New usage is discouraged.) (Proof modification is discouraged.)
Ref | Expression | ||
---|---|---|---|
Hypotheses | opsrbas.s | |
|
opsrbas.o | |
||
opsrbas.t | |
||
Assertion | opsrmulrOLD | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | opsrbas.s | |
|
2 | opsrbas.o | |
|
3 | opsrbas.t | |
|
4 | df-mulr | |
|
5 | 3nn | |
|
6 | 3lt10 | |
|
7 | 1 2 3 4 5 6 | opsrbaslemOLD | |