Description: The exponentiation of a class to zero is a relation. (Contributed by RP, 23-May-2020)
Ref | Expression | ||
---|---|---|---|
Assertion | relexp0rel | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | relres | |
|
2 | relexp0g | |
|
3 | 2 | releqd | |
4 | 1 3 | mpbiri | |