Theorem 0exp0e1

Description: The zeroth power of zero equals one. See comment of exp0 . (Contributed by David A. Wheeler, 8-Dec-2018)

	Ref	Expression
Assertion	0exp0e1	$$⊢0^0=1$$

Proof

Step	Hyp	Ref	Expression
1		0cn	$$⊢0\in ℂ$$
2		exp0	$$⊢0\in ℂ\to 0^0=1$$
3	1 2	ax-mp	$$⊢0^0=1$$