Description: Value of a complex number raised to the 0th power. Note that under our definition, 0 ^ 0 = 1 ( 0exp0e1 ) , following the convention used by Gleason. Part of Definition 10-4.1 of Gleason p. 134. (Contributed by NM, 20-May-2004) (Revised by Mario Carneiro, 4-Jun-2014)
Ref | Expression | ||
---|---|---|---|
Assertion | exp0 | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 0z | |
|
2 | expval | |
|
3 | 1 2 | mpan2 | |
4 | eqid | |
|
5 | 4 | iftruei | |
6 | 3 5 | eqtrdi | |