Description: Value of the square of a complex number. (Contributed by Raph Levien, 10-Apr-2004)
Ref | Expression | ||
---|---|---|---|
Assertion | sqval | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-2 | |
|
2 | 1 | oveq2i | |
3 | 1nn0 | |
|
4 | expp1 | |
|
5 | 3 4 | mpan2 | |
6 | 2 5 | eqtrid | |
7 | exp1 | |
|
8 | 7 | oveq1d | |
9 | 6 8 | eqtrd | |