Description: Equality inference for product. (Contributed by Scott Fenton, 4-Dec-2017)
Ref | Expression | ||
---|---|---|---|
Hypothesis | prodeq2i.1 | |
|
Assertion | prodeq2i | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | prodeq2i.1 | |
|
2 | prodeq2 | |
|
3 | 2 1 | mprg | |